Sony PlaySation Portable(PSP) was released on December 12, 2004. This system was based on Multimedia, the PSP can play music, watch movies, play games with other thing as well. The PSP Used an universal media disk(UMD) as well as the Sony memory stick. The PSP also comes out with its own supporting movies like Spider man which game with the PSP first batch of systems. You can also buy some of the new movies that are coming out like King Kong. The PSP had and 802.11b which allowed wireless gaming online though the internet. The PSP had an 6.7" x 2.9" screen, with Li-Ion battery which lasted about 5 hours. and cost $300 for the Giga pack and $250 for the Value Pack.

Links
Wiki PSP - GameStop PSP