ok, first impressions:
carousel is actually very smooth. I did encounter lag spikes here and there doing some routine UI stuff like adding shortcuts. So in that respect, it performs on par with a stock Sense 1.0 ROM.
The clock widget is rendered in 3D so that when you spin the carousel, you can actually see the side of the widget as it gets scrolled off the screen. Same with the music app. the album cover art is a CD jewel, and it appears to have thickness when you rotate the screen. This is just perspective rendering, not stereoscopic 3D in case people are wondering.
UI look and feel has changed a little. It will be very familiar, but the lines are more streamlined. Font has changed, and font size for menus is smaller, which means less scrolling to find stuff in settings. font size for icons is smaller, so we see more of the word before it's cut off. Actually, looking through the app drawer, I don't see any icon labels cut off because of length.
My homescreen icons were invisible. Icon text was showing though.
The gallery app loaded but just showed a white screen. Maybe it didn't find my photos. looking in a different folder possibly? music player found my music, so it rules out an SD card connectivity issue.
Camera app could show me the thumbnail of my last pic, but when i click it to load the pic, I get a white image. Looks like a gallery porting bug. Otherwise, camera app seems improved. more options.
dialer hasn't changed much. I still much prefer the vanilla GB dialer.
music player seems to be hardcoded to qHD and didn't scale down. So part of the UI was cropped at the bottom and right edges. can't start playing songs from player because I assume the play button is off the screen. Need to play via widget.
HTC Hub requires a separate login. Terms and Conditions is dated Mar 1, 2011. Created account. But couldn't use it... "Unable to download catalog. Tap to try again."
lockscreen: pulling ring up top anywhere unlocks the phone. To unlock and open a specific app, pull the app icon toward the ring. pulling the ring over the icon does not work, as confirmed by many hands-on videos.
App drawer is still a vertical scroll, but now there are page breaks that stop the scrolling. Not sure if I like that. 4x4 grid of icons, though I think on qHD, we'll see 5x5.
Task Manager shows a bar representing internal memory: used vs free. below that is a list of running apps with the option to manually terminate them. Clicking on the app brings you to the same page as Settings > Applications > Manage Applications > [app]. There's no auto-killing task feature anywhere to be found, which is a good thing.
There's a "mirror" app that just turns on the front camera so you can look at yourself, lol. Framerate looks decent on it. 30fps based on my eyeball estimation.
That's it for now. definitely a work in progress. It ran as smooth as a stock 3.70.651 ROM. Lag spikes here and there is typical of Sense on the Evo, but nothing horrendous.
I'll restore my apps and stuff and live with the ROM for a full day and see if there's anything else notable.