According to Eric Lempel, Director of PSN Operations, firmware 4.00 for the PSP will be available soon, though no firm release date has been given. The main change to the PSP system software is the inclusion of Google Internet Search directly from the XMB. This new feature add a new icon to the XMB and replicates the Google Internet search experience, delivering the same search results that you’d get at www.google.com. Another new feature includes the ability to change the video playback speed.
The update adds the ability to change viewing speed during playback of videos stored on your Memory Stick PRO Duo, so you can speed through or slow down what you?re watching. To do this simply press the up or down directional buttons while playing a video. No other new feature have been reported so far but expect more details soon.