To add to this, I bought 2Do and synced it with Toodledo. I can manually sort any given list, but the new order does not carry over to different device. What I need is to be able to reorder tasks on my iPad and have that sequence show up, say, on my iPhone.
I've been using Toodledo for many years, but I'm getting really tired of giving my to-dos initial numbers to get them to appear in the approximate sequence I'll have to attend to them. Are there any third-party apps that allow you manually drag and reorder tasks on an iPhone?