If enough people use this, we have plans to include additional logic to it (database, etc.) to make it more collaborative - definitely stay tuned if you like it and give us more feedback on what you would like to see!
You could achieve this entirely statelessly (i.e. without a database) by encoding the task name in the URL. This is the sort of feature that could fuel growth by encouraging sharing :)
That's more what I was going for -- a nice, short URL I can send to someone.
What happens after you send it to your coworkers? Would you want to track whether your coworker gives up?