2do seems to be getting better with each update and certainly has an active development team. However, the Things' system is a little more to my liking. I just wish they would add push alerts, but at their development rate that could be 2 years from now or never. On the other hand, 2do has gotten a little more complicated with v1.2, but maybe it just takes a little adjusting. I'm currently using 2do lite and trying to decide between these two. Anybody have any arguments for or against either?