In human mitochondrial genetics, Haplogroup M is a human mitochondrial DNA (mt DNA) haplogroup.
An enormous haplogroup spanning all the continents, the macro-haplogroup M, like its sibling macro-haplogroup N is a descendant of the haplogroup L3.
Up to today, neither of the groups have given up, but it is obvious who is winning.
Instead of enabling people to run homebrew, the PSP hacking groups have started building their own PSP custom firmwares.
Enabling this homebrew makes the PSP an open platform.