The dust will get worse... I do not think you are going to like the Moment over the Hero. I was also watching but after the Cnet review yesterday I am sticking to my Hero.
Missed this reply earlier.
Im completely prepared to use openHome on the Moment should I decide to go that route. I will miss HTCs weather/clock widget and the FB intergration but thats about it. With luck, the Moment will get an upgrade to 2.0 or someone will figure out a way to root it, and I'll just throw a custom ROM in. That'll take care of the FB part, so I'll only really miss the Clock/Weather widget.
openHome has some very nice skins, and I have a pretty good idea which ones I would use. The thing about plain jane Android, is that I wouldnt be worried about messing up the pretty UI, cause frankly, I dont think its all that pretty.
So anything I do, short of breaking it, would be an improvement.
Pros:
Slightly faster Processor
Flash with Camera
Physical Keyboard
Better overall look (totally opinionated here)
Optical Trackpad
Ability to totally customize the UI. (yes I can do that with the Hero too I know)
Cons:
I lose Sense UI.
No Facebook intergration (for the time being)
Lower Quality Camera
So, like I said, its really going to depend on how the Moment feels. If it feels cheap, flimsy and all plastic like I will probably stick with the Hero. On the other hand, if it turns out to be a good fit, its goodbye to Sense and the Hero. Which also means I have to go back to waiting for root, but meh. I cant have everything.