The closest thing to a findings thread on this site for the .323 hybrid is the .296 hybrid (but only 3 pages worth). They are very similar.
There is also a thread about this hybrid on
BBHybrids - Blackberry Hybrids
As for speed: It is not quite as speedy as V10 in terms of accelerometer. But its close. I myself would have stuck with v10, but the email-link issue was really annoying, and the lack of bluetooth i was having with media player (which is most likely due to my headset... but it works in .230, so i went back)
Its a fair compromise. Its still a fast OS, just not quite as fast as V10. But it makes up for it with the available features mentioned already.
I dont have many apps installed. But havn't had any issues with them.
Facebook
Youtube
Google Maps
Opera 5.0 beta
weather eye (doesnt update homescreen icon unfortunately, but if i recall, it did with v10)
Corey