During its Battle.net BlizzCon panel, Blizzard announced that StarCraft II will allow players to put price tags on their created maps. Creators will, of course, see some cash for their hard work, but Blizzard didn't give an exact percentage.
The hope is that this will encourage players to form small dev teams and craft complex maps -- or even new gametypes. So whereas before, the cost outweighed any potential rewards these intrepid souls might reap, now they've got a real cash-money incentive.
If you're afraid Blizzard just tossed a "You must have this much disposable income to play" sign in front of StarCraft II's multiplayer, don't panic. Blizzard compared its new storefront to the iPhone App Store in terms of how it's hoping the distribution of free and premium content will emerge.
More as it comes.