Yea, I just close the apps when I don't need them running... I started doing that with MySpace so it hasn't been that bad for the last few days, similiar to Viigo.
I didn't get a chance to experience it. I wasn't too fond of the app either. FB was good when I installed .185, but after a wipe and reinstall, I seem to have gotten the leak again.
The MySpace app worked great for me and I loved it, but like my previous post said, something was taking my memory down from 9mb to 1mb in a matter of hours. And I always close my apps when not in use.