Alright, I've done some playing around and here's what I've found.
1. The native 3G hotspot app does not work with this build. So long access point.
2. The Blur cardock app has issues with the google music app. I like the blur cardock better, so I've been installing it on blurless roms. I didn't install the blur music player, so installing both may fix this issue. Also, the new vanilla theme gives the cardock app a grey background, which reduces visibility.
3. The Blur media gallery does not work with this build either. So long HDMI output. The google one is much more responsive though.
4. The Blur alarm clock doesn't work with this build. I'm probably the only one who cares, but it was a good app. It allowed for gentle volume increase as alarm played and mp3 selection as alarm; things the vanilla app doesn't. I'll just have to hunt down a third party app to do with.
5. The Blur camera app _does_ work with this build. It's a good thing, because the vanilla camera app, as people have noticed, is a bit meager.
Anyway, this rom is causing me to break my blur addiction, which is probably a good thing.
EDIT: Also, for an alpha, this thing is ridiculously stable.