Martin is describing 3G mobile broadband. Here is a link to verizon's website:
Verizon Mobile Broadband There are similar offerings from Alltel
Alltel Broadband , Sprint
Sprint Mobile Broadband , AT&T
AT&T broadband . For internet access in your situation, this is a great way to go. I'd be careful of AT&T though as they are having capacity problems due to iphone usage (see WSJ article on
network capacity concerns )