Not to mention the coverage is unreliable. In my experience it was. I used it in metropolitan city and it was all I could do for access. The burst speed was still not impressive. Granted I pulled internet service from a cell tower but you have to be in a pretty populated area. For travelers, who knows where they will be. If you aren't leaving your area chances are you will have wireless internet someplace or you'll have your own at-home access.
You will probably be further ahead to access email through mobile email, and just use the browser to browse while you need to look up something while away from your laptop.
That's interesting, I live in a suburban area and when I used Verizon's towers for computer internet. The speeds were comparable to a typical DSL service. Of course since Verizon's EVDO services were expensive, we switched to a DSL service subscribed in the fastest speed (my neighbors bought the slower subscriptions

haha succkas)
Anyways, From my neighbor's internet (AT&T, SBC) it seems Verizon's EVDO (I had a Rev 0 Modem at the time) was only a bit slower, but is comparable. But compared to a high-end AT&T DSL service, then EVDO is blown out of the water, but I think the candidate to go against that would be Verizon's DSL internet or FIos itself.