In other news, the PSP (and PSVita, by extension) also saw some love a few hours ago as Chovy GM got released which is a tool letting you port over GameMaker 8.1/8/7 games to the PSP by simply specifying a StandAlone Executable file and building an ISO. According to its GitHub release page, it makes use of the GameMaker Runner found in Karoshiís PSP port which is a highly experimental build never released to the general public for standard development.
To download Chovy GM and give some old GameMaker projects a go on the PSP, download Chovy GM from this link but do keep in mind the PSPís limited hardware and small amount of RAM!