If you're in the US and with T-Mobile you're probably familiar with their $20 unlimited calling on wifi plan. Unfortunately tT-Mobile cannot create a small app so that the iphone may be compatible with the plan.

Does anyone familiar with how it works with UMA could draft a beta? I heard a small app enabling to the plan work is easily possible with the iphone 3rd app "friendly"-os.

It would be sick.

Thanks

Gus