DE target features work well, as described in the main wiki page. Some improvements needed from alpha release:
Dialer running in background, user can receive cellular calls any time and ringtone plays. User gets notified about missed calls. SIM PIN query enables use of protected SIM card.
SMS messages can be received any time, and there is message tone playback.
Browser starts and runs quickly, and doesn't slow the device down when put to background.
Camera has better image quality and automatic focus, exposure and white balance.
Device screen lock and backlight control works as expected.
Device is not freezing randomly, or slowing down excessively.
Touch sensitivity is optimized, to minimize the effort when swiping vs. tapping.
DE image can be written to eMMC if user so chooses (might imply losing existing Maemo OS)
User interface is MeeGo 1.2 Handset/MTF based, but some of the applications might be replaced with contributions from the community (eg. Peregrine, looking for more!) or new MeeGo UX.
There will be experimental MeeGo QML UX image as well available for N900, but only to show the current status and open the discussion for 1.3 targets.