I was using Ping! very happily on my iPhone 3G. When I switched to iPhone 3GS it asks me for username but it's only for creating new account. When I try my previous username "mnystedt" it just says it's taken. I see no way of logging in with the existing username and an email to developer has gone unanswered.

Any ideas anyone?

I have removed the app and added it again, same thing.

Surely I shouldn't have to create a new username.