Can Someone Recommend A Router Solution vs. iphone tethering?

[socalgallj]

Was all set to tether with my iPhone in order to change IP address however I want to be able to use one of the scouting applications but now I see that they need to connect to your seller account which obviously would lead to a link.

Sooo, I'm thinking I could:
A. Use my iPad for tethering (i think thats possible)
B. Use some sort of mobile router like a Linksey?

If someone is using a router like this can you please advise?

[rsot]

If your ipad has 3g service, I am wondering whether it could serve as tether.

Otherwise, look into dongles