Did you know that there is a mobile version of the Visual Studio website? I stumbled across it recently and it is fantastic resource to have on your phone.
One of the really great parts is the Crack the Code game, which gives you four snippets of code (2x C#, 1x F#, 1x VB.NET) and asks you to figure out how many errors there are. If you work out correctly you get access to wallpapers for your mobile device and if you get all four correct you get a limited edition Visual Studio 2010 Window 7 theme!
To access the site go to http://mobile.microsoft.com/visualstudio (note the mobile in the URL) on your mobile device!