German IPad used in the USA

I have a friend from germany coming over that needs to use his German 3G IPad here in the US. Does anybody know wether tohere is Micro Sim of a carrier available that offers monthly or other short term dataplans for reasonable cost? I think his Standard carrier in Germany is T-Mobile but roaming would be incredibke high cost.

Thanks!

Check the "Traveling with the iPad" thread on this page. It explains what he has to do to get connected.

He can pick up an AT&T microsim for $15 at any AT&T store and then sign up for one of the two prepaid plans. $15 = 250MB $25=2GB

Thanks for the great help. Appreciated.