"Nintendo and AM3 are now distributing video content for the GameBoy Advance Movie Player. This device allows you to insert your flash memory card, crank a handle and instantly download anime episodes to watch on your GBA. Episodes are around 25 minutes each and priced at 300 yen to download. There even appears to be a “free content” button, presumably giving you trailers, etc. The machines will be dotted around at Japanese Pokemon Centers, Toys'R'Us stores and other kid-friendly outlets."
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GizmodoEarlier: