If you’re needing access to MSDN library from a 3g tethered, or low bandwidth at a location, MSDN Library is now published in a mode that lowers the payload…

http://msdn.microsoft.com/en-us/library/default(loband).aspx

Much more detail on Scott Hanselman’s blog on the HOW…

http://www.hanselman.com/blog/LowBandwidthViewAndOtherHiddenAndFutureFeaturesOfMSDN.aspx