I have an OG Dinc that got the OTA update over a month ago..
And I HATE it!!! I had never had any problems with my phone from the day I got it in August, 2010. When the update hit, I kept getting "low space"notices anytime I tried to use an app, lost several apps I loved, had trouble making/receiving phone calls... The list goes on. The only positive was a faster reboot, which I lost the second I did a battery pull trying to follow instructions on how to minimize the bugs. I finally had to do a factory reset, which killed some of my apps even though I'd backed everything up. That made the phone usable again, something I'd really worried about, since the update hit a couple of weeks after my warranty expired.
But my Dinc still isn't the same. Most noticeable, there is a lag of several second when I answer the phone before my callers hear me. The assumption on their end is that the call has been lost, and I've had to call them and make apologies that, yes, I did answer, my phone is acting up, yada yada yada. It also freezes several times a day, on the lock screen, on a page, in an app... The only way to get out is to reboot, losing the call, the, info, you name it.
I loved this phone before the update, and had no plans to replace it in the immediate future. Now I read all the data on new phones to be released. I can discern no positive benefits from this "update". Instead, I feel like I was mugged. So the moral of my story is: Be careful what you wish for.