I've been on T-Mobile for quite a while. I was just in Germany for a week, and was absolutely thrilled not to have to buy a local prepaid sim card. I seemed to

I've been on T-Mobile for quite a while. I was just in Germany for a week, and was absolutely thrilled not to have to buy a local prepaid sim card. I seemed to be on 3.5G networks but it said it was throttled to 128kbps. The fees for unthrottled data were kind of obscene, though - $50 for a '30 day' pass including only 500MB of unthrottled data.