For all the moaning and groaning I hear coming out of the board, I decided to get off my lazy duff and do some damn testing of the 333mhz feature.
Here's the results:
Test Run 1: PSPGenesis, running 333mhz, on Sonic 2, for 24 hours straight on AC Power.
Result: PSP is slightly warm in the sides, but the PSP is still fully responsive, and sonic played well.
Test Run 2: PSPGenesis, running 333mhz, on Sonic 3, until the battery dies.
Result: 5:20 of playtime. System fully responsive after coming back from dead battery.
Test Run 3: PSPGenesis, running 333mhz, on Sonic 3, with UMD disc inside, until battery dies.
Result: 2:34 of playtime. As you can see, the constant spinning of the UMD disc inside the PSP while playing homebrew KILLS the battery.
Test Run 4: SNES9x y13, running 333mhz, on Chrono Trigger, until battery dies.
Result: 5:05 of playtime. System fully responsive after coming back from dead battery. System slightly warm in corners. Seems that since the SNES emulator pushes the PSP more, it eats the battery a bit more.
Test Run 5: SNES9x y13, running 333mhz, on Chrono Trigger, for 24 hours on AC power.
Result: Chrono Trigger did lock up about 7 hours in, but home button was responsive. Assumed that it was an emulator bug, and continued running Chrono Trigger from that point on, with no issue. PSP was warm as usual, but no other problems.
So now all you worrysome people can quit your bellyaching and get some good gaming in while those emulator authors work hard to get you the fastest emulation they can.
If anyone thinks that something else needs to be tested for some idiotic reason, post it here, and I'll think about it.