Motorola Assist has received an update in the Google Play Store. The update now allows the app to read text messages and announce callers while you are home, in addition to offering this feature while you are behind the wheel. The app now does a better job of determining if you are driving a car. And yes, there are the proverbial bug fixes included.
Motorola Assist's Driving and Home modes are available only on the Motorola DROID Ultra, Motorola DROID MAXX, Motorola DROID Mini and Motorola Moto X. The update should be available from the Google Play Store. If you don't receive it today or tomorrow, don't panic. The update will arrive.
source: MotorolaAssist via TalkAndroid