I've installed pretty much the last 5-6 leaks straight, but I have noticed one thing that seems to be consistent amongst then all...the hub notifications for FB and Twitter are unreliable for me. Sometimes the notifications come instantly, but sometimes they are delayed, sometimes they don't show at all. I usually have to manually check the apps to know for sure. Maybe it's my ISP? What are your experiences in general? If someone responds to a FB or twitter post for you, do you receive instant or reliable notifications? To be fair I saw similar on droid too, just checking here.
Though my notifications come instant, there were times that my previous OS installs that I had mentions and facebook comments come up to 3 hours later.
FB not so much - messages though can be horrendous though.
The only solution I found to twitter is getting emailed your tweets that are fav'd, mentioned, retweeted etc.
I've always had an issue with FB chat where sometimes I would send a message and it would show as sent. Then I open the conversation again and that message had disappeared as if I never sent anything!
This happens on slow connections usually but still.
receiving notification is usually delayed for FB also.
Not a heavy Twitter user so can't comment on that