Will Hack For SUSHI » MiFi Config Hack.
A post by friend and collegue at SANS Joshua Wright. Joshua is one of the guys I know that is really proficient at hacking wireless. Bluetooth, wifi, etc. He does some really wonderful work at that, and he's fantastic at it.
This post is about him hacking his Mifi (Verizon). He has two posts on the subject you should check out if you have a Mifi.
The other post is here.