“It’s smaller.”
Honestly, I’m not buying it, I have no intentions of buying it, and it seems like a terrible idea. Unless it’s under $50 USD, or it has wireless functionality with GCN or Revolution, I’m not getting it.
…
On second thought, I hope and pray that they can make a small GBA that has wireless connectivity with Wavebird receivers for play with Crystal Chronicles and Four Swords. I just accidentally came up with an excellent idea and a great way to sell a new model Gameboy.