GameSpot has had a talk with Virginia McArthur about Bustin' Out on the GBA and GameCube. The interview has been spread over 3 pages, and mainly discusses the GBA version. The opening question is about when development on the GBA version started, which officially was in March 2003. There's also a lot of talking about the connectivity between the GBA and GameCube, as well as the features the GBA edition will have. Here's a snippet about auctions:

"If you connect to another GBA, you will be able to participate in each other's daily auctions. Auctions are held every sim day in the GBA version of The Sims Bustin' Out, so the best way to get more cheap stuff is to link up to another GBA and join in that auction as well. Your sims will be able to show up at the other player's local general store and will have an additional auction time. This is the ultimate trading spot--a way to bargain and take away other sims' surplus."

They also shortly mention the developers of the game, which is not Maxis but Griptonite Games, an Amaze Entertainment Studio located in Kirkland, Washington. For more questions and answers, click here.