See, it's trades like this that reaffirm my faith in the basic goodness of humanity:
Why Orlando goes for it:
Because Dwight Howard? Really? He needs to just get the hell out of Orlando, with their megachurches and their strip malls. There is lengthy evidence about him butting heads with Stan Van this season - neither likes the attitude of the other. Besides, Howard really isn't all that good. And look! If they acquire KMart, they get +2 in wins! That's the two wins they needed to win the championship! So, by this logic, (Orlando - D12) + KMart = Championship. IT'S MATH, YOU CAN'T ARGUE WITH IT.
Why Philly goes for it:
Philly is in full firesale mode. They were already trying to dump Iggy, and with their coaching, they need a solid vet like Billups to to guide them out of the bowels of mediocrity into the promised land of salary cap restructuring. Also, Malik Allen is about to go Beast Face all over the league, and this makes them a contender in the east. A backcourt of AI and Billups? Yes please.
Why Denver goes for it:
There is no reason for Denver to make this trade. Essentially, this would be charity to the other two teams. Jrue sucks, and we'd be giving up our defensive leader and our steady, veteran, superstar point guard. I actually hate this trade for Denver, and I'm sure you'll agree. Dwight Howard? Meh. Iggy? Meh.