Well, in short if anyone played the old Maxis Sim Tower, that is essentially what this game is. I don't know any other details. It is strange that they are making this game for the GBASP rather than the DS seeing as how the DS is a far more suitable system for this style of game. If they were making this for the DS, I would pick it up off the shelf with no questions asked. When I was a kid, I used to love this game.
http://www.nintendo.co.jp/n08/btrj/aim/index.html
http://www.nintendo.co.jp/n08/btrj/aim/index.html