Ok, I only have a cricket razr, but after a lot of searching I think this may work. Someone with a xv6700 or a treo try this and let me know what happens. Essentially it is software (available in a 7 day free trial for palm and pocketpc/winmobile) that forwarRAB the actual data connection from the phone to the computer, no gateway on the provider's end required. Seems like it may do the trick for us cricket users to FINALLY get that sweet internet access on a pc through cricket.

http://www.junefabrics.com/pdanet/index.php for PPC
http://www.junefabrics.com/palmnet/index.php for PALM

Let us know what you find out, or if I'm missing something...but it seems this may work.