Wondering what’s changed in PSP 5.05 firmware

The latest PSP firmware is out! Don’t go running to perform an update though. Unless you’re willing to pay for an Asian or Japanese copy of one of the three versions of Idolm@ster SP, you won’t be able to get your hands on 5.05. The latest update from Sony is only available on the Idolm@ster SP: Perfect Sun, Missing Moon and Wandering Star UMDs.

There’s no reason to get upset. Since it is only on UMDs for one specific game, the firmware obviously only applies to Namco Bandai’s Idolm@ster SP games. There’s no changelog, so we can’t be exactly sure what 5.05 does differently than 5.00. The best we can do is wonder and hazard some guesses…