I start two emulators, one with android 1.5 and id "5554" and the other with the 2.0 (or 2.0.1) and id "5556".
I send the same message to both emulators. Ex. "Hi little mom!"

1.5 show the message in this way "5556: Hi little mom!"
2.0 show the message in this way "Hi: little mom!" and Hi is treated like a contact.

Is this a bug or what?

Bye to everyone.

It's an emulator "bug" on real device it didn't happen.