A nice little game Microsoft's Internet Explorer team and Mozilla play is gifting each other cake each time the other launches a new version of their browser. Mozilla sent Microsoft the latest one, to congratulate it on MSIE 10 launch (along with a much bigger one, of Windows 8). In its tweet, the MSIE team thanked Mozilla for the cake, and said it's looking forward to a version of Firefox optimized for Windows 8. It is rumored that Mozilla does/has in the past sent recipes along with their cake (keeping it open-source all the way). Microsoft launched its slickest, fastest version of Internet Explorer with Windows 8, a version for Windows 7 is slated for November.