What's wrong with old stuff? GBA homebrew is great, and I consider it a major selling point of slot-2 cards. For instance, the only way to play GBC games on the DS is with Goomba Color, which is only the GBA. Herg's Solitaire and Herg's Yahtzee are great pieces of GBA homebrew despite their small filesize, and Luminesweeper is a fairly accurate recreation of Lumines.

Back on-topic though, this sounds somewhat interesting. I wonder if their movie format is any good or if it's just a renamed DPG file.