This portability is achieved using a slide-out form factor, a smaller screen (3.8 inch screen as opposed to the 4.3 inches on all other models), and the removal of the UMD drive, limiting the system to digitally downloaded games only.
Under the hood, PSPgo is identical to other PSP models, with the same capabilities and OS, while also adding 16GB internal flash memory and PS3 controller support .
Even if you own a game on disc, in order to play it you would have to repurchase and download the game from PSN, often at a marked up price.
To make matters worse, certain PSP titles were never made available for digital download at all, making the PSPgo unattractive even to gamers who did not yet own a PSP.
If your PS3™ system software version is 4.82 (or later), you do not need to perform this update.
You can use this update to upgrade your system software to version 4.82.
Software updates were made available by disc and download.
All models have two sets of indicator lights, power lights and Infrared receivers; one along the front for horizontal orientation, and a second strip along the top-back for vertical orientation.
However, the lack of UMD drive, which physically prevents it from playing disc-based games, resulted in the PSP Go being a complete commercial failure.
The 16GB internal storage space can be expanded by the use of Sony's proprietary M2 Memory Stick, unlike the other models of PSP, which use the Memory Stick Pro DUO.