So, I brought up my idea of flashing a gameboot to a 2.6 via the downdater to Slasher.
Slasher then coded a little test program to use the flash0 to move a gameboot.pmf from the root into ms0:/test/
I booted up my 2.6 PSP with the PoP gameboot in my root.
Next thing I know, my PSP shuts off and it turns on with a "disc could not be read" error.
I removed my GTA UMD and went to USB mode
There I saw it, gameboot.pmf in the ms0:/test/ folder!
So, we were excited that it worked.
Then, Slasher edited the eboot to move the gameboot from the root to flash0:/vsh/resource/
I booted up GTA yet again, got the disc could not be read error.
Boot up GTA to test the gameboot..the PSP hangs for 10 seconds, I smell a brick!
Luckily, it didn't brick, but it did go the original gameboot.
We'll be investigating and experimenting more tomorrow, stay tuned.