bug: facebook pictures stay on device
The pictures downloaded from facebook stay hidden on the devices, I deactivated facebook's picture-sync as it was constantly nagging me for connection when I left the gallery open. Now I do not see them in the Gallery anymore but they are still there. In my case that is only a few MB but some people might have some 100MB. I did not try what happens when I delete my account, however. As the facebook-pictures are an external source, there is no need to keep anything on the device when the service got deactivated. Leaving contacts in People is ok with me, as long as it is made sure that they do not get duplicated every time someone activates their sync again.