Sony has just released its new portable gaming device, the PSPgo. The predecessor of the PSPgo, the PSP, has been sold over 50 million times worldwide and already offers the ability to download and purchase games using the online PlayStation Store.
Because the PSP Go does not feature a UMD drive, games are downloaded from the PlayStation Store. While other PSP models have included the ability to run games and demos downloaded from the PlayStation Store, the PSP Go is the first for which this is the only means of distribution.
There are three ways to access the PlayStation Store. The PSP Go can directly download to itself, or users can also download then transfer the games from a PlayStation 3 or the Media Go software on Windows based computers. All current downloadable PSP and PlayStation games available for older PSP models will be compatible with the PSP Go. Sony has also confirmed that all UMD based PSP games released after October 1, 2009 will be available for download,[12][13] and a majority of older UMD-only games will also be downloadable at that time.[14]
PSP Minis
A new section of the PlayStation Store will be available to all PSP owners (PSP and PSP Go). These games are under 100MB and a variety of developers will be contributing to the creation of “Minis”. These games will be smaller, cheaper, and will be download only. The Minis Section of the PlayStation Store will be available on October 1, 2009, the same day as the launch of the PSP Go. Fifteen games will be available at the launch and 50 are to be expected before the end of 2009.
Expected PSP Minis included Tetris, Fieldrunners, Minigore, Puzzle Scape, Alien Havoc, Sudoku, Pac-Man Championship Edition, Burn Zombie Burn 2D, Funky Punch, BreakQuest, MelodyBloxx, Hero of Sparta, and Championship Manager. Halfbrick will contribute four Minis: Echoes, Rocket Racing, Blastoff, and Zombies. Icon Games Entertainment has revealed it’s working on four Minis: Arcade Air Hockey & Bowling, Arcade Pool & Snooker, Stuntcars and Arcade Darts.[15]
For the PSPgo, the only way to get a game now is to download it from the PlayStation Store. With the launch of the PSPgo, the store now has a new section, called Minis. These are smaller and cheaper games than the currently available content, and will only be available in the store, no more in retail channels. The games in Minis will be under 100MB and available to both PSP and PSPgo owners. Fifteen games are available and 50 are expected before the end of 2009.

PlayStation Store
Sony has also confirmed that all new PSP games released after October 1 2009, will be available for download in the store.