The Wakelock allows the app to wake up when your phone is asleep. My twitter client wants one, but I have notifications turned off. It might be that because I have them turned off it doesn't invoke a Wakelock. But it might. Basically, Wakelocks are the #1 cause of unnecessary battery drain.
I see, thanks. That's what I thought, but I thought that apps rely on push to get notifications. I guess that would not be very scalable, so the client wakes up once every X hours and polls.
