The SDK version of Android 3.0 Honeycomb has been ported successfully to Google Nexus One by the XDA Developer. However, the port isn’t fully functional as the Wi-Fi, Bluetooth, and Audio features need a bit tweaking to work. As Brad Linder points out over at Mobiputing the ROM has a long way to go before it’s really usable. 3D performance is sluggish, and basic phone functionality is lacking — you can’t make calls or SMS yet.
One has to perform some tricks to get the UI working in landscape orientation. The Honeycomb Alpha SDK ROM carries some modifications like the File Manager form the Cyanogen 7 pre-release Custom Rom, Terminal Emulator, QuickBoot for reboot and has been rooted.
Just in case you are going to try out this ROM on your phone, be warned that it might turn your phone into a telephony-less handset.
Download Android 3.0 Honeycomb for Nexus One.