LG's DoublePlay smartphone adds a host of serious messaging features to Android, like a QWERTY keyboard split by a secondary display.
LG DoublePlay review
Two screens, two sets of keys, too little effort from LG
LG DoublePlay due for release on October 26th (Update: confirmed)
Dual-screen Android Gingerbread smartphone LG DoublePlay release date set for October 26th.