Well, as I've posted before, CDMA modems do exist . Here in Russia CDMA standard isn't welcome (they just want to have transparent networks ) so the only CDMA CF modem that is available and is able to work is Ubiquam UM-100 modem sold under Skylink local brand name. It's damn big, damn heavy (due to battery pack; without is, it's said, modem will burn our Z's by overcurrent of a CF slot) and damn expensive (almost $400). It uses IMT-MC-450 (cdma2000) standard as a network protocol and 1XRTT, IS-707 as data transfer protocols (couldn' figure it out better ). We've also heard 'bout other CDMA modems but the only portable wireless modem standard that's really widespread here is 15-20 kbps GPRS...