XNA
1.
Platform, price, and supplier/creator
Windows
Free
ware
Microsoft:
http://www.xna.com
2.
Applications
XNA is
a game development library and IDE, that facilitates computer game design, development, and management
for
professional
game developers
3.Web Resources
Official website:
http://www.xna.com/
Wikipedia:
http://en.wikipedia.org/wiki/Microsoft_XNA