This is quite essential addon, basically a staple for operatively organizing your tasks for a day, week and so on. I'm very glad to have discovered it.

It has a one big problem, though:

You're asked to log in every hour or so, which is a big drawback and very annoying. If you have to do that 5 times a day every day, you can imagine how that impedes usage.

I've read that this is not a new problem - is it going to be fixed (soon)?