Some problems I have with the new OS:

Video player will not play some of the video that previously played on the old OS. They're 2+hour video (movie).

I use to be able to connect to the internet using my nokia 6600 phone (gprs). I had the 5.99 tmobileweb plan. After the update, it didn't work. I thought I set it up wrong, so I did a restore to my settings and select that, it still didn't work. Deleted it and recreating it...still no go. I can surf on my phone fine so I know it's not the phone. I'm tempted to flash back to see if it works.

Another thing is that it takes forever to find my access point, sometimes 2 or 3 refresh before it sees it. Of course I have wpa-psk, mac filter, and hide SSID. With just wep encryption on it finds it right away, but who wants that.

When using the file manager I get "updating" in the top right hand corner, and sometimes it just stuck there updating. Also I get the word "refreshing" or "searching" stuck in the right hand corner also. Sometimes I have to reboot to get rid of it.

Locks up a lot....sort of like when the 770 first came out, web browser closes more often.

Now before everyone scream BETA and I shouldn't complain, I think that is precisely what you suppose to do with a beta. You have to say what's wrong with it so nokia can straighten it out before final release to the public. Besides that I really like the new OS.