Ok so my last post here was about Unity as well, but:
http://unity3d.com/union/
freakin' awesome.
Basically you make a game using Unity, package it up, send it to them, and they'll try make you some cash.
Apparently they also have a QA team that will test your game, and will offer help porting to different hardware.
Replies
Would I be willing to "spend" 20% of potential profit on getting a leg-up in those areas? Yeah, I might actually be willing to do that. Keep in mind that Unity doesn't even charge for their most basic engine licencing. So that 20% would be the entirety of my overhead. And that's still a better margin than what most other services give you. If this Union program could potentially double my sales, the 20% cut would be a wise investment.
I don't know about Steam but: