Adding stubs for a new /tech/ (Technical Info) section to replace the
obsolete/outdated /porting/ guide, as well as stubs for its first 3 residents:
Dalvik, Bluetooth, and NFC.

Change-Id: Ie7d375015f630b7087212da55befaac4bcb1d4c2
diff --git a/src/tech/bluetooth/index.md b/src/tech/bluetooth/index.md
new file mode 100644
index 0000000..2f5d459
--- /dev/null
+++ b/src/tech/bluetooth/index.md
@@ -0,0 +1,23 @@
+<!--
+   Copyright 2011 The Android Open Source Project 
+
+   Licensed under the Apache License, Version 2.0 (the "License"); 
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+# Bluetooth Technical Information #
+*Placeholder*
+
+The Android Open-Source Project includes a bluetooth subsystem currently based
+on the upstream bluez project. Android then layers various IPC and similar
+libraries to link the bluez library with the Android Bluetooth stack and API.
+
diff --git a/src/tech/bluetooth/sidebar.md b/src/tech/bluetooth/sidebar.md
new file mode 100644
index 0000000..32ca4a9
--- /dev/null
+++ b/src/tech/bluetooth/sidebar.md
@@ -0,0 +1,6 @@
+# Topics #
+- [Dalvik](/tech/dalvik/index.html)
+- [Bluetooth](/tech/bluetooth/index.html)
+- [NFC](/tech/nfc/index.html)
+
+# Bluetooth Topics #
diff --git a/src/tech/index.md b/src/tech/index.md
new file mode 100644
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+++ b/src/tech/index.md
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+<!--
+   Copyright 2010 The Android Open Source Project 
+
+   Licensed under the Apache License, Version 2.0 (the "License"); 
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+# Android Technical Information #
+Welcome to the Android technical documentation section of the site. Here you
+can find technical information useful to people and organizations who are
+looking to modify, contribute to, or port the Android software. This is "under
+the hood" information intended for engineers.
+
+## Dalvik Technical Information ##
+The Dalvik Virtual Machine is the heart of Android. It's a fast, just-in-time
+compiled, optimized bytecode virtual machine. Android applications are
+compiled to Dalvik bytecode and run on the Dalvik VM. This section includes
+detailed information such as the Dalvik bytecode format specification,
+design information on the VM itself, and so on.
+
+[&raquo; Dalvik Information](/tech/dalvik/index.html)
+
+
+## Bluetooth Technical Information ##
+The Android Open-Source Project includes a bluetooth subsystem currently based
+on the upstream bluez project. Android then layers various IPC and similar
+libraries to link the bluez library with the Android Bluetooth stack and API.
+
+[&raquo; Bluetooth Information](/tech/bluetooth/index.html)
+
+
+## NFC Technical Information ##
+The Android Open-Source Project also includes an NFC implementation. Unlike
+the Android Bluetooth stack, much of the Android NFC stack is new code
+originally contributed to the Android Open-Source Project. This code links the
+Android NFC API to a device's NFC hardware. This section also includes
+information on related Android technologies, such as the simple NDEF Push
+Protocol.
+
+[&raquo; NFC Information](/tech/nfc/index.html)
+
diff --git a/src/tech/nfc/index.md b/src/tech/nfc/index.md
new file mode 100644
index 0000000..94a41dd
--- /dev/null
+++ b/src/tech/nfc/index.md
@@ -0,0 +1,25 @@
+<!--
+   Copyright 2010 The Android Open Source Project 
+
+   Licensed under the Apache License, Version 2.0 (the "License"); 
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+# NFC Technical Information #
+*Placeholder*
+
+The Android Open-Source Project also includes an NFC implementation. Unlike
+the Android Bluetooth stack, much of the Android NFC stack is new code
+originally contributed to the Android Open-Source Project. This code links the
+Android NFC API to a device's NFC hardware. This section also includes
+information on related Android technologies, such as the simple NDEF Push
+Protocol.
diff --git a/src/tech/nfc/sidebar.md b/src/tech/nfc/sidebar.md
new file mode 100644
index 0000000..356d531
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+++ b/src/tech/nfc/sidebar.md
@@ -0,0 +1,6 @@
+# Topics #
+- [Dalvik](/tech/dalvik/index.html)
+- [Bluetooth](/tech/bluetooth/index.html)
+- [NFC](/tech/nfc/index.html)
+
+# NFC Topics #
diff --git a/src/tech/sidebar.md b/src/tech/sidebar.md
new file mode 100644
index 0000000..6330fad
--- /dev/null
+++ b/src/tech/sidebar.md
@@ -0,0 +1,4 @@
+# Topics #
+- [Dalvik](/tech/dalvik/index.html)
+- [Bluetooth](/tech/bluetooth/index.html)
+- [NFC](/tech/nfc/index.html)
diff --git a/templates/header b/templates/header
index 823053f..4382545 100644
--- a/templates/header
+++ b/templates/header
@@ -9,6 +9,8 @@
                               onClick="return loadLast('source')"><span>Source</span></a></li>
       <li id="compatibility-link"><a href="/compatibility/index.html"
                               onClick="return loadLast('compatibility')"><span>Compatibility</span></a></li>
+      <li id="tech-link"><a href="/tech/index.html"
+                              onClick="return loadLast('tech')"><span>Tech Info</span></a></li>
       <li id="community-link"><a href="/community/index.html"
                               onClick="return loadLast('community')"><span>Community</span></a></li>
       <li id="about-link"><a href="/about/index.html"