ComCast and Time Warner plan to end their wholesale deal with Clearwire now that they are going to be wholesaling 3G/4G from Verizon in around six months.   So, look for both to stop selling Clearwire sometime around May 2012.  It is not clear what will happen to the Comcast's 30,000 WiMAX and 27,000 Time Warner WiMAX customers.

So, if you are looking to purchase XFINITY Internet 2Go from Comcast, you might want to research in more detail before signing the contract.