I just hope that Stripe don't make the mistake of forcing users who want to operate in Germany of using the site in German. Paypal assumes that everyone is German, who is in Germany. I live in Germany and I'm not German. I know lots of other people here who aren't German. Europe has a fluid movement of people between different countries. Physical location and language preference have no direct relationship over here.

US startups needs to heed this advice. The minute you plugin that IP-to-geolocation technology, remember it is a guide, not a rule and it definitely does not translate to a language preference.

What puts me off Paymill is that I have no way of choosing a language preference. If I could select English I'd be there like a shot.

Google translate only goes so far...