Ok SP thats exactly where i was going. At CTIA the OS on the Evo and WiMAX were not compatible at all. Hence why soo many apps could not be shown. I know some of them were not complete, but others could not work with 2.1 because the OS does not support a 4G signal. If the OS does not support a 4G signal then that means widgets and apps and such can not work on 4G. If those can't work on 4G then what is the point of even having a 4G phone.
Now i know some of you are saying hey we saw the internet run on 4G. So did i and damn was it fast even with laoding flash! However that was an app specifically designed for 4G. Most of the apps you find in the market however will not be 4G specific so that they can run on all android phones. In this case they wont recognize the 4G signal, thereby using 3G, thereby not making the phone live up to it's 4G potential.
If Self Praise is right, and I'm sure he is, they have fixed the OS to accept the 4G signal in all cases. This allows the signal to be recognized and used by all applications, widgets, etc.
Hopefully that clears things up, sorry if i confused any of you earlier!
Jackson