The PS2 Eclipse, a portable PlayStation 2, appears online
This does lead to some issues, however. Since the PS2 uses USB 1.1, the load times can be considerable, closing in on an minute for some titles, according to GingerOfOz's video, Another known issue is that the PS2 will not recognize the controller on "quite a few games," rendering them unplayable, though GingerOfOz seems confident these issues can be addressed through software fixes. While there's no compatibility list available, he says that if a landmark PS2 title isn't shown running in the video, it's likely because it wouldn't run. (For reference, some of the titles shown running on the Eclipse include the Super Monkey Ball games, the Grand Theft Auto trilogy, Persona 3 and 4, Kingdom Hearts, Katamari Damacy and Metal Gear Solid 3: Subsistence.)
GingerOfOz will not be selling the Eclipse on commission as he has for his other handhelds in the past; however, he is encouraging users to create their own. His video gives an overview of the process and his website points to some extra resources, and will reportedly be updated with more details in the future.