I have used the Appigo To Do app since it came out for the iPad 1 and loved it. It has a beautiful looking, easy to use interface that I am good at. It has truly changed my life. That sounds like a promo, but there is a BUT, a big one. The online sync, which I pay for, is always malfunctioning. I am forever getting error messages saying Online Sync Busy which prevents my two iDevices from interfacing. Is it possible to have them interface with each other and forget the ToDo Online sync. I have tried a number of others, including fairly expensive solutions, but come back to this. Do you have one you love?