Well, have been playing with it for a couple of days. Very fast, smooth transitions, some newer layouts for some options (e.g., try Options | Theme and then press the "checklist" icon to the right of the screen). Good use of memory, and longer battery life. Very good version so far.
I have found a couple of glitches, though. For example, I usually set my timezone to either Hobart, or Canberra, Sydney, Melbourne. Both of these are GMT+10, except Hobart starts Daylight Savings/Summer time on the first Sunday of October (which Melbourne has now adopted as of last year I think), so the latter CSM timezone is no longer correct. I usually have Auto Update Time Zone set to Prompt (for daylight savings, etc, but also for travel in the past) so I know what it is getting switched to. Funny thing. The phone keeps telling me that it has found the time zone for Vladivostok (no really, I'm not joking :-) which is also GMT+10 only Northern hemisphere and the wrong way around for daylight savings, and keeps wanting to switch it over. Does this mean that my phone is a Russian spy? :-)
Also, there are still the gaps between media tracks that "should" run seamlessly into each other, so still some work to go on the media player side of things.
If this is close to an official release, then things are looking up. I'm trying to get my organisation to trial a Storm2, which, naturally, I would need to be involved in, having done so for the iPhone and the 9500 Storm :-) (are we going to start saying Storm1, now? Egad! I hope not)
Cheers,
DrJoe