The default sms app is extremely annoying. I have 2 major problems with it. The first is you can't cancel a message once you send it and I hit enter by mistake all the time. The other problem is how it only notifies you of a new text once. I would love an app that gives me the option for a dialog box that asks "Are you sure?" every time I send a text to prevent misfires, and an option for the phone to make noise every 15 minutes when I get a new text until I check it. The confirmation box is more important. Anyone know an app like this?