New features of the NGP and Sony Xperia are touch screens and in the case of the Xperia's ability as cellular phone. Now, picture shows a newly published, however, that Sony has been working on an accessory that these functions would allow for PSP.

This chart is received from a patent application filed by Sony Computer Entertainment, shows a touch panel, would be having USB connector. Users would plug the device in the PSP’s USB slot and flip the touch screen on top of the PSP. A stylus could be used to tap an onscreen keyboard to input characters or play games that worked with the hardware.

This touch panel is also planned in a further variant, a touch panel with cellular radio, the numbers were written on the panel. This should be it possible to use the PSP as a mobile phone and the numbers on the panel should mean that it feels more like a handheld cell phone.

The patent was in 2004 and became one with the same time for the camera and the GPS device registered. In contrast to these two, the plans were rejected for the touch panel. It seems that Sony scrapped the rest of the plans in favor of developing the Xperia Play.