http://www.youtube.com/watch?v=W1zqCXFt6ok I figured I would drop this here as well ... Still only for RGH consoles and no BB support , but that is next on the list , and not very far from working. Find it on Xbins /development/RGLoader , you need both packages or all 3 if you want 13599 and 14699 , Retail discs will load on 13599 , backups too of course with a modified FW on the drive ... I don't have a phat to test on they may also work on 14699 on phats , Let us know actually , we need feeedback on this one big time because most of use don't mess with discs anyway.
Lawl I made a BB image, but can't test it xD Since I do not have a coolrunner nor want to screw up my retail. IMG: http://ddxcb.com:81/Nand/RGBuild2_img.jpg
Anything that 360s with the JTAG mod can do, 360s with RGH can do as well. For now. It'd be pretty hard to mess it up as long as you have a NAND backup, but you /can/ easily mess it up on solder points like the right side of C3B2 capacitor for phats (C3B10 for slims) if you're not careful. If you do mess it up from soldering, it should be possible to fix it with a rework station.
Pretty awesome achievement, will be interesting to see what, if anything this does for the 360 homebrew scene.