"Giving a PS3 owner of Portal 2 the ability to also play their game on the PC and Mac is an extension of this philosophy. From our perspective, it's not two copies of a game; it's the same game, but with Sony's help we've worked out a method to allow that Portal 2 PS3 customer to also play their game on the PC and Mac." …is the right answer. Well done, Valve.

"It’s important to note that this number does not reflect either the number of people owning a mobile phone and that the United Nations Millennium Declaration remains a crucial milestone to reach for the mobile industry. However it shows that homes, bridges, cars, laptops and netbooks, white goods, plants, spimes, and other objects have a mobile phone subscription and are likely to become the most important target segment for mobile operators around the world." Which begs the question: how do you market to things?

It Just Works and is good.

Learning datamining, using the WoW Armory as a data set.

"This page documents the web API calls that allow you to retrieve information from the item system in Team Fortress 2." Steam now has a Web API. Ooooooooh.

"…the bullets biodegrade when they hit flesh, leaving nothing behind but a blog post." It is a little sad that, as ever, I'm the millionth person to write "I LOVE VALVE" on the internet, but seriously, as I keep saying: I love Valve so much. (I want my white earbuds).

Brilliant.

"But then, nobody’s expected to be able to sight-read the Pro guitar tracks. It’s meant for actual students of the guitar. And if you use the game’s slowed-down Practice mode, the game packs the potential to become a real tool for learning to play music." The notion that Harmonix were always a music company, who just happened to make games, becomes ever more true. Proper tab notation, proper strings on the Pro instruments? Well done.

"The dwarves hide in the shadows of the trees from the wandering light. The burning tea-light (adult player) moves through the dark forest and tries to find the small dwarves in their hiding places. If a dwarf is touched by the light, it is frozen and not allowed to move anymore. The other dwarves try to release it. To achieve this they must wait until the light has gone far enough so that one of them can join it in the shadow. All the dwarves try to unite under one tree while the candle tries to freeze the dwarves. Who will win, the light or the dwarves?" How the hell did I not know about this? Asymmetric boardgame for adult/children – one player, made of light, hunts down other players, hiding in shadow, shutting their eyes between turns. Magical.

"Augmented Shadow, by Joon Moon, 2010. used openframeworks. It's a tabletop interface on where artificial shadows of tangible objects displayed. You can play with the shadows lying on the boundary between the real, virtual, and fantasy." Now stop reading and watch. Beautiful, simple, engaging, playful and storyful all at once.

"I see Valve Software today holding the same position in the overall media landscape that Marvel Comics occupied in the early-mid 1960s. In both cases, we have two experienced studios, neither the mainstream-recognized giants of their fields, who made an unusual decision: they chose to spend the creative capital gained from prior commercial success to quietly revolutionize their respective medium's dominant genres, rather than take the safer path of grinding out more derivative sameness."

Ben Zeigler's notes on Bunge's Jaime Griesemer's talk at GDC, all about balancing. Sample quotation: "It can be tricky to balance, because designers can misinterpret competence (getting good at a weapon) with the weapon being balanced. We CANNOT use our intuition at this stage because it will lie to us. Changes will have to be done in larger batches, and we need to avoid bias effects." Really, the whole thing is jampacked with interesting stuff (not all of which I agree with, but most of it is very good indeed).