New app called Tasker. Same idea as Locale, but way more customizable. Want it to read incoming SMS messages while you're driving? How about muting your phone when you're in a meeting?
Available from the market or direct download with a 14 day trial
http://tasker.dinglisch.net/
http://tasker.wikidot.com/
http://lifehacker.com/5601133/push-y...-tasker-setups