ZiggyDraw - 2D Zune Graphics Library for XNA 3.0 CTP - Circles, Lines, Squares, Ellipse, etcZiggyDraw - 2D Zune Graphics Library
XNA Game Development for PC and XBOX 360
ZiggyDraw - 2D Zune Graphics Library for XNA 3.0 CTP - Circles, Lines, Squares, Ellipse, etc


Javier Ferrero has a new Cell Shading (Toon Shading) sample available on codeplex. This sample comes complete with source for XNA 2.0.
The instruction limit has released an XNA Effect Compiler and Disassembler to help with the management of XNA Effect resources. This tool can help if you are having problems with fxc.exe when compiling effects.