Oh my god. I've stopped using my PSP for a while (a cousin of mine has been using it). Now that the PSN storm is over, I decided to pick it up again, so I could do the PSN password reset thing and, perhaps, update it's custom firmware to something newer.
I'm still using 5.50 Prometheus-2. I never bothered updating to Prometheus 3 back then because of the Save Incompatibility thing. I knew there were plugins and applications designed to fix save incompatibility, but I just didn't bother.
Now, there's a million different Custom Firmware available. Somebody said, earlier in this thread, that Prometheus 3 v4 is the best bet so far (as Prometheus 4 breaks compatibility with some games), but I look around and there's about a billion different firmwares running up-to-date firmware, mostly for the PSP Go and ports to the 1000 and 2000 models.
Is 5.50 Prometheus-3 v4 still the best bet? I'd like to keep playing my UMD discs from the memory card, PS games with updated emulators would be a plus (as some games don't work with the Prometheus 2 one) and PSN and PS Store access. I can still do it on Prometheus-2 with PSN Lover, so I'm guessing that's not an issue? I'd like to download some new free games when the PS Store gets back..
Edit: I know all about Prometheus 4 being fucked up and not officially released, I'm just asking if any of the newer installable firmwares on a PSP2000 (for instance, 6.38 ME-3) bring any benefit not present in Prometheus 3.