I was surprised that this information was not shown on Macrumors. There is a large European prepaid phone operator called Simyo, they are in the Netherlands, Germany and Spain. They now offer unlocked 3G Iphones for about 600, with no contract obligation. They also offer internet access for 9 a month, restricted to 1Gb. I think it's an excellent offer, a little more expensive that German Telecom's offerings but it spares you 2 years contract with Telecom, which locks your phone, is extremely expensive, and exposes you to all their rip offs and problems.