Now this is a great idea. Almost as good as my idea for a phone app that works like an auto interlock system: the phone will allow you to do anything--except text or email or input txt on the web unless you can blow below a certain BAC. (Don't steal my idea. I know who you are.)
Despite lacking the breakthrough genius of my breathalyzer app, this app sounds pretty good too:
Delete multiple unwanted or embarrassing posts from your Facebook and Twitter accounts, including photos, comments, tweets, and direct messages. Available for iPhone, iPad and iPod touch.
Now if they only made it for other phones...