Find out what features are contained in PSP system software version 3.70.
An
update to the PSP system software was released on September 11, 2007.
With this update, the system software is version 3.70 and the following
features will be updated.
Main features that are new or revised in version 3.70

You
can now set a custom theme under [Theme Settings]. The Home Menu colour
background or icon design can be changed, based on the theme that is
selected.

You can now search for a scene when playing a movie that is saved on a Memory Stick Duo media.
You
can select and play the scene you want to see from a thumbnail image.
This is convenient when you want to quickly play only a specific scene.
- Viewing a slideshow while listening to music
Simultaneous playback of content under Music and Photo is now supported.
You can enjoy viewing a slideshow of your favorite photographs while listening to music.
Other new or revised features in version 3.70
Network
- [Assign Buttons] has been added to the [Remote Play] menu.
Video
- Sequential playback of videos that are saved on the Memory Stick Duo media is now supported.
Note:
- This system software update includes all features contained in previous versions.
- The new system software will preserve any settings previously made to the PSP (such as the Parental Control level).
- Depending on the software title, you may not be able to play without first updating the PSP system software.
- Do
not perform updates using any data other than the official update data
provided by Sony Computer Entertainment over a network or on disc
media, and do not perform updates by methods other than those described
in the product documentation or in this site. If an update is performed
using data from another source, by another method, or with a PSP system
that has been altered or modified in any way, the PSP system may not
operate properly and may not be able to install the official update
data. Any of these actions may void the PSP system warranty and affect
your ability to obtain warranty services and repair services from Sony
Computer Entertainment.