Edit GENERAL
Education Roadmap -
MSDN
Creators Club Content Catalog - Lots of downloadable source
XNA Developer Center
mobilegames@microsoft.com - monitored for XBox Live opportunities
wp7games@microsoft.com - secondary route for games submssion
Edit PRESS
Games to be Front and Center on Windows Phone -
MJ Foley
Windows Phone 7 to Bring More than 50 XBox Live Games to Mobile -
ZDNet
XBox Live Titles for Windows Phone 7 Finally Revealed -
Engadget
Edit BLOGS
Chad Carter - Charlotte
Shawn Hargraeves
Taco Industries
XNA UK User Group
Edit LEARN
How to: Create Your First XNA Framework Application for Windows Phone -
MSDN
Create XNA Games for WP7 Series -
Creators Club
Beginning 2D Game Development -
msdn
Building 3D Games for Windows Phone -
msdn
Intro to XNA on WP7 -
Nick Ohrn
TechEd 2010 WPH308 -
Building a High Performance 3D Game for Windows Phone
Edit APIs
Microsoft.XNA.Framework.Audio - Microphone -
MSDN Ref,
Pete On Software,
Rong Chua Article,
Recording Audio in SL on WP7 by C-is-for-coder
Shaders -
ShawnHar
Tombstoning on XNA -
create.msdn.com
WCF and XNA -
mikebmcl
Edit TEMPLATES
ScriptTD -
http://scripttd.codeplex.com,
Channel9 Article,
Channel9 Video, Walkthrough with DreamSpark Reg for Students -
Andrew Parsons
Edit TOOLS
Cocos2D for Windows Phone XNA -
cocos2d-x
Helium Game Engine for Windows, XBox, and Windows Phone -
codeplex
Photon Multiplayer Game Engine -
https://cloud.exitgames.com
Sunburn Game Engine for Windows, XBox, and Windows Phone -
http://www.synapsegaming.com/products/sunburn/engine/
Unity3D for Windows Phone -
unity3d
Edit MISC
Localizing a Title in XNA -
msdn forums
Edit SEE ALSO
WP7 -
General Info,
API Notes,
App Hub,
Windows Phone 7 - Starter Kits and Templates,
Controls,
Design,
FAQ,
Globalization and Localization,
XNA,
Windows Phone 7.5 - Mango - General
Edit BOOKS
My favorite books on this particular topic! Can't miss....