Sony has released a new firmware update for the PSP. Firmware version v6.38 is a minor update that improves the stability of the system software during use of some features. In addition to the new Firmware, Sony has also updated the MediaGo applicaiton for the PC.
The MediaGo update adds supports for new Xperia mobile phones (PLAY, arc, neo) and WALKMAN devices, along with some installation, performance, and stability improvements.