I just switched from the sprint ppc-6700 to the sprint htc touch (also known as the elf) running Windows Mobile 6. One of the things i loved about the 6700 was that I could use wmodem.exe to enable to get tethered internet access. It looks like Sprint closed this hole on the HTC Touch - but there is always another way :-). Check out this forum post here: http://forum.xda-developers.com/showthread.php?t=318292&page=2

To Sprint employees looking to plug this hole: this is the only reason I didn't switch to the iPhone.

Have fun -

R