Update 5/25 - DerTeufel1980 has spent a while perfecting a universal kernel that works on AOSP and Sammy ROMs. The thread is here > http://forum.xda-developers.com/show....php?t=2239453
He had to work out some bugs that prevented troubleshooting the dual-boot problem. However, he recently returned to the dual-boot problem and has solved it. He has been able to dual-boot with AOSP as primary, Sammy as secondary and vice-versa. He is still fixing some recovery issues, etc but is hopeful that the release will be available tomorrow. This turned out to be much more challenging than other phones but that is probably why nobody else has accomplished it until he had a device to work on...
AT&T Galaxy Note 2 - Currently powered by Jedi XP12
AT&T Galaxy Note Original