I would like to see a way to put ranks or priorities on tasks.

I use the task tool in Exchange, and since that does not sync along with e-mail, contacts and calendar, I need something that I can use on my desktop and phone. I like the idea of taskr, but one function I use a lot is the ability to prioritize the tasks (in this case, high, medium and low), and then each morning I go through and number the highs to help me get organized. I know this sounds pretty OCD, but it works for me. I have a large number of items on my task list at any one time, and that level of organizational ability helps.