Just arrived in Frankfurt today. By way of passing, came across a Vodafone store, and the kind sales people there were able to get me up in less than 20 minutes with a pay-as-you-go service. I needed just more than two weeks, but the fellows there said take the two weeks, and here's a coupon with the sim card, which they had a punch to make into a micro, and loaded up the plan onsite, for a week, not self renewing, but able to be selected in the settings panel. Coupon is good for 3 - 1 hour sessions, at any time, so that will carry me for a couple of extra days that I need. I believe the plans are 14.95 Euro for 1 week [1gb], 39.95 Euro for 4 weeks [5gb], and even daily plans. Paid cash, no gift card need, no local address, for credit for 2 weeks, and will be prompted for renewal at end of week. Supposedly seamless, as the banner info says. Will see if that's the case. Posting this from Mannheim at the moment.
So of all the plans mentioned here, this seems to be the easiest to implement, although the salesperson did have to call the Vodafone Hotline for a bit of assistance which only took a few moments.
Very pleased with the service so far.
