Bugs I have seen so far:
1. The RIM Twitter app goes bunkers. More so when integrated with Social Feeds.
2. Post sent to Facebook via Social Feeds occasionally do not go through or are delayed when sending.
3. My BBM completely reset as if I never used. Removing my contacts and groups.
4. I have yet to download a full pod cast without it failing.
5. Contact pictures seem to disappear.
6. I've marked 2 email icons a "favorite" however randomly they will disappear from the "favorite" tab.
Still though many new features, and these bugs are bearable. I still yet to customize my profiles too much. (I am awaiting the next leak anxiously
)