Watch out, Verizon. Sprint just turned on three more cities with their super-high-speed EV-DO Rev A network today. Sprinters in Las Vegas, Milwaukee and Seattle join San Diegans with the ability to download files at speeds that are realistically around 800-1000 kbps, and upload files at speeds much faster than the 153 kbps of the older Rev 0 system.

Rev. A is the fastest cellular network out there right now, and it's especially important to Sprint because they need it to create a Nextel-quality push-to-talk system and thus to be able to eventually shut down the old Nextel network. Verizon has announced plans for Rev. A next year, but hasn't turned any cities on yet. Cingular and T-Mobile are working with an entirely different technology, HSDPA, which Cingular has in about 50 metro areas and T-Mobile will be launching next year. It's just about as fast as Rev. A on downloads, but slower on uploads.

To use Rev. A right now, you need a laptop with a PC Card like the Sierra Aircard 595 (at left). But there are rumors of a Rev A smart phone coming out soon from HTC and UTStarcom. We can't wait to see it.