Let the hive mind of Engadget get that for you.
"I just switched to Sprint from Verizon about three months ago for the Pre. Then I went for the Hero about a week ago. Now, I miss my hardware keyboard and am thinking about switching to the Moment. I am still able to switch back to Verizon if I want and get the Droid when it arrives. Should I just trade up to the Moment when it comes out, see if I like it, and if not switch to the Droid? Or something else entirely? Help!"
If I understand what that is, you should be able to have a wireless card in your laptop that can access GSM, GPRS, EDGE, CDMA, WCDMA, 3G, HSDPA, EVDO, UMTS, WiMax or any other network acronyms we get thrown our way in the next five years simply by reprogramming the radio chip in the card.
Somebody please explain why this fantasy is not realistic.