I'm wondering if for the N800 with a bluetooth GPS attached there are any TODO lists that support location based to-do lists.

The things I'm thinking is that if I put in my dry-cleaners location when I get within a certain distance (as measured by the GPS) of the dry-cleaners the TODO list would pop-up and tell me to pick up dry cleaning. Same thing for store etc.

I'd Also like a location aware to-do list switcher where if I mark a task as home it shows up when I'm at home, or all my work tasks would show up when it saw I was at my office.

I realize these are big tasks but would be rather helpful.