With Google Goggles and their “undo” setting, what more could you need to stop help you avoid unintentional email sends to your ex? Since email traffic has shifted to smartphones, most notably the iPhone, a similar service needs to be implemented to help cell users avoid turmoil. Josh Spear turns us to Bad Decision Blocker, an iPhone app that allows you to block specific contacts at preset times. This one’s going to deserve a five-star rating.