MotoSpeak 2.0 for Android builds on their success by adding the ability to dictate, review, and send reply texts entirely via the Bluetooth headset. 2.0 even translates up to 150 text acronyms, like 'LOL', 'BTW', 'TTYL', etc.
Unfortunately for earlier Android-build-owners, the full features of MotoSpeak 2.0 will only work with Android 2.2. It is also only compatible with 3 of Motorola's most recent headsets: the Finity, which uses 3 mics to cancel noise in windy environments; the CommandOne, which uses CrystalTalk and dual mics; and the Roadster, which is a car-mounted Bluetooth with dual mics and power-saving entry/exit recognition.
source: Motorola via MobileBurn