At the Android blog These Are The Droids, an anonymous source states that the upcoming HTC Supersonic was being tested by Sprint, and is indeed running Android 2.1. The source also claimed that the build was less buggy then it was in Janurary, when the Supersonic was leaked. Another note left by the tipster was that currently the Supersonic is using the Sense UI found on the HTC Hero, but upon final release will use the refreshed Sense found on the Desire and Legend. Another thing: the Nexus One is currently in Sprint’s database for a future release. While we cannot independently confirm if this is all true, it seems pretty real to us so far. Any tipsters want to come forth about now?
Source: These Are the Droids