I don't care what anyone says a device that's only a month old and marketed as "It's not your dream devices, it's the one after that" should have support for the improve UI that's coming out shortly. If anyone thinks differently, they are really drinking koolaid here. It's one thing for a 1 year or 2 year old device to not be support but 1 month? Give me a friggin break.
Do you know anything about how much processing power Sense 3.0 requires? I mean, come on. Sure, you can have Sense 3.0 with your 2nd gen snapdragon, but you won't be able to scroll through your homescreen carousel without freezes, those fancy animations won't render properly, and your battery life will be ****.
It is not reasonable to expect a UI designed for a dual core processor and a much more powerful GPU to work on a single core processor. It just isn't. I don't care if you feel slighted, its just a basic fact of life when you're dealing with mobile technology that is iterating at such a fast pace.
That being said, the parts of the UI that WILL be ported over should be pretty solid. I'd wager the lockscreen, newer widgets, and made-over UI will make the cut. Those fancy animations won't. (and why in God's name would you want them on this device? They won't work well)