Don't report bugs on this build!!!!!
Make sure your SDCARD is formatted as FAT32, when installing the screen will stay black for a few minutes, just wait, NextUI will show up.
Generally
Lid open and close are being detected and it goes in sleep mode when lid is closed
Generally everything works browse menu's, play games, settings app etc.
Things that don't work:
WiFi in Settings app (can be configured using stock and then rebooting in NextUI)
Battery monitor app shows no values, altough battery indicator works fine
In game menu doesn't show when returning from sleep, just hit volume button 1 time and it will work again