Yes, Audiovox RTM8000 works great for zaurus. You may need some setup changes in the serial config file, and add a modified serial_cs module (available in the ZUG download area under drivers), and there\'s a how-to in the security/networking area.
I don\'t know much about T-Mobile, I use Fido in Canada. Their unlimited plan is limited. I got a warning mail that I was exceding my monthly limit on their unlimited plan
I have unlimited $30 plan even though I also have their voice plan and had
option to get $20 plan instead. However, I wanted a separate card for gprs
so I don\'t have to pull it out and move it between the phone and zaurus.
BTW, I used your great instructions to get gprs working with this card.
There are some adjustments for t-mobile but what you had got me very
close to start with. Also, on the latest few Cacko ROM\'s working serial_cs
is already there so you don\'t have to download anything.