A while ago we reported that a firmware update for the PSP allowed the system to be unlcocked so that it could use it’s CPU’s full 333Mhz. For all those who thought that there had to be a bigger catch than just battery life, it turns out you were right. According to a report, the PSP can only use up to 222 of it’s CPU’s megahertz while the system is using Wi-Fi. Apparently the PSP is either clocked or unclocked for a game. This means if developers want to add multiplayer in their game, the system limits the clock speed for the entire game, not just during the multiplayer. The reason for this limitation is unknown, but when GameDaily asked why this was, Sony Computer Entertainment America said they would find out from Sony Computer Entertainment Japan.