If you drive to work - you want this app.
It will read you in nice voices your SMS, twitter, Facebook or Blog entries, as well as weather and your schedule/calendar entries.
It self updates, and works with Bluetooth (so I hear it in my Cars audio - a 2010 Camry)
My only annoyance is that is Blog entries that are HTML based (e.g Dilbert Blog, Freakonomics) when contractions are used (e.g " its " the program will say "It Anpersand 38 s" )
Either-Orr about Voice Brief - text to speech voice assistant for news email and more