I still have problems login in - claims to have problems with the OAuth.

Just a theory is that I have the "=" character in my password. i have the same problem in "Witter" actually which made me aussume you have a common Oauth library that has this issue. I use TweetDeck and Trillian5 on PC (which handles the credentials properly) and I can also use the web interface on both the phone and PC and phone with no problem, so there definitely is something with my username/password combination that is specifically wrong here.