yes. installed it on my N800. installation was easy, runs without major problems, but lacks the "out of the box" experience you get with OS2008. even the browser, one of the few pre-installed applications, lacks functions i use on a daily basis and is therefore not an option for me (which has nothing to do with Mer as such, it's just their current choice of default browser).

anyway, i'm impressed by the speed and the energy behind this project and would be very surprised if one of the future versions (even before an official "1.0" release) couldn't be used as the main OS on the N8x0.