Horrible attention needing obvious mudslinging GOG forum Sierra hating trolls.
Guys you are being obvious.
Its about subtlety.

They aren't. That's just a result of code left in the game from the updates they performed for the Xbox 360 version. I'd guess their code for showing achievements just grabbed everything, which is why it states that there are 5 achievements for Op4 and 3 for Ricochet.

I thought Steamworks was already free?

I think that the price (or the lack of price, zero) is included in the engine licensing. I don't know about UDK though, if they'll make this available for the UDK based games.
So it means a lot more games being tied to the steam drm for cloud features and etc., even retail games.

What I find interesting about this is Valve actively backing what should be a competitor to the Source engine.

Probably Valve think that Steam integration is more profitable for them in the long run than Source-engine licensing. Or maybe Steamworks is Valve's trojan horse? :P

Or, you know, the engines address different audiences: Unreal Engine is one which requires mostly up-to-date hardware in order to run on the highest settings while Source isn't as resource intensive.
This means that Valve is taking Blizzards approach: catering to a large audience by having low system requirements, thus allowing a large number of players with older systems to enjoy their games while also providing integration with Steamworks to a high performance engine that can draw in the pixel counters.

Steam needs to implement a countdown timer for special sales\deals like GOG does.
I put two discounted items in my shopping cart, and few seconds before pressing the "purchase" button, the sale ended (the page didn't even update).
Charged full price, no refunds.

Does anyone other than Valve use Source anymore?

These days? Probably not.

I want to play the patched version of divine divinity but I have to download it again in it's full glory booooo.
Capped internets :< No patch-policy :<

I always found it highly ironic that it's usually the biggest promoters/providers of DRM that are the most openly against them : Bill Gates, Steve Jobs, Gabe Newell,etc... I wouldn't be surprised to have next Yves Guillemot telling us how much he hates DRM too.
If good old Gabe is so against DRM why doesn't he start by removing DRM from some older games released on Steam... (And I am not talking about the one were it's technically impossible to put DRM like the dosbox using ones.)

Well it probably has something to do with him not being some God of Software who can do whatever he wants to anyone's games.