Yes and Yes. We use async tasks at 99designs for all kinds of background tasks. It's a surprisingly useful and versatile system for a variety of things. It's a

Yes and Yes. We use async tasks at 99designs for all kinds of background tasks. It's a surprisingly useful and versatile system for a variety of things. It's a long list. :-) Our rule of thumb is basically anything that's going to take more than ~100ms we definitely don't want our users waiting for it in their page load time.