Movie and game rental service GameZnFlix has recently dropped all support for PSP. The company, which used to provide UMD games and movies to about 100 customers, has called it quits due to changes in postal regulations. "The bad news is that these changes to the mailing standards are forcing us to discontinue offering games and movies for the PlayStation Portable device. Because of both the disc weight and thickness, we would have to use a more expensive shipping method and slower side of the postal system since these discs are no longer eligible to be shipped as 1st class letters."
Currently, it appears that GameFly, a competitor, will continue supporting PSP systems with game and movie rentals.