For laptops:
They have prepaid 4Gb air cards for $20.
5Gb refills for $50. Good for one month only.
Get a T-Mobile prepaid 4G USB aircard for $19.99 - CNET
Hotspots: 7Gb for $50. 11Gb for $70. Credit check required.
Mobile Broadband Plans | Mobile Internet Data Plans | T-Mobile
For no credit check, there's a maximum of 5Gb for $40.
SCNC Mobile Broadband
If you have links to other plans please post.
We are getting reamed by Verizon.
Somehow I've used almost 18Gb this month (with only a 6Gb extra major download).
$120 bucks for internet access.....