GBA To Pioneer Movies On The Run?

Thanks to the New York Times for their article discussing the rise of movie-playing add-ons for Nintendo's GameBoy Advance (registration required). The piece says that "portable video players are beginning to change where and how people watch movies, cartoons and music videos," and points to multiple GBA movie devices in development, such as Majesco's Game Boy Video Pak and TuneIn's Pocket Cinema, which will have an interface to a 3-inch CD player. With other products like 4Kids' GBA-TV in development, and the Sony PSP and Tapwave Helix portables promising movie availability, has this idea come of age, and is it reasonable to expect the public to watch "video on a screen the size of a dollhouse window, with a resolution that is no match for even a standard TV set"?