Sony is not ruling out introducing new PSP Minis features like wireless multiplayer functionality.
Last week SCEA senior account manager Justin Cooney said that PSP Minis won’t support wireless multiplayer, downloadable content or software updates because it allowed Sony to "accelerate the approval process" of games.
Speaking shortly afterwards, the company’s director of PlayStation Network operations, Eric Lempel, said that Sony may introduce new features for the service.
"So you can patch Minis, but we won't have multiplayer functions in the beginning," he explained to Destructoid. "Basically, to get these developers on board, and to make it easier to test and get it through the pipeline, we won't be allowing that functionality for the first stage of Minis. It's something we will consider in the future," he added, referring to game updates and multiplayer.
PSP Minis will be exclusive to the PlayStation Network and have a 100MB size limit. 15 titles will be made available at launch on October 1 in Europe / PAL territories and the US, coinciding with the release of the PSP Go. SOURCE