I searched the app store recently for an app I was sure someone had come up with. But alas, no one had. So I thought I’d throw it out there in the hopes that someone wanted to take it on. Like many people I maintain a “to call” list. I do a lot of work over email, but I’m also on the phone anywhere between 5 and 12 hours a day and at any given moment I have a healthy list of people to get back to. I’ve tried different ways of managing this list – from putting them in as calendar reminders (works to create the list, but it’s not persistent enough) to using tasks (this has been the…