I've had my Curve for a year now and I can remember rumors last fall about the next OS past 4.2.2. First it was 4.3, then 4.5. I know there are leaked betas of 4.5, but I'm only interested in official releases.
At this point with the impending release of the Bold, Kickstart, and Javelin, I doubt AT&T will release anything past 4.2.2, and they'll sunset all the Curves without ever upgrading their OS.
Trust me I would rather run an official att but since I am running 18.104.22.168 and it is running stable and works perfectly for me now! I can say just download an official release from a different carrier and enjoy! I do know that att will release as soon as they are ready to!
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