Lovely behind-the-scenes on how the Guardian iPod app slowly evolved.

"I've long held that all media transit from being "functional" to "art" when they are no longer economically viable. It is that transition which dampers the cost and the consequence of failure and makes the space necessary for people to experiment and play. Think of lithography which was born of purely utilitarian needs and sherparded the arrival of the mass-produced image only to become capital-O objects as soon as the offset press was invented." I love Aaron.

"As editorial director of Ladybird Books, Douglas Keen, who has died aged 95, was responsible for the first experience of reading of millions of children." Myself included; I learned to read with Peter, Jane, and my Mum, sitting on my bedroom floor each morning.

Amazingly, a few in here I didn't know – "move selection" and "delete only whitespace" for starters.

"I call this new form "procedural rhetoric," a type of rhetoric tied to the core affordances of computers: running processes and executing rule-based symbolic manipulation. Covering both commercial and non-commercial games from the earliest arcade games through contemporaty titles, I look at three areas in which videogame persuasion has already taken form and shows considerable potential: politics, advertising, and education. The book reflects both theoretical and game-design goals." Add to cart.

"I won’t rant about how our tax dollars pay for these images and how we deserve better. But what I do find alarming is that these documents are used to brief major decision makers. These decision makers may know a thing or two about policy and politics, but if decoding and understanding the armed forces budget is the goal of these documents, then there is a huge failure here." Datafail and slidecrime, all under one roof.

"The true orator is one whose practice of citizenship embodies a civic ideal – whose rhetoric, far from empty, is the deliberate, rational, careful organiser of ideas and argument that propels the state forward safely and wisely. This is clearly what Obama, too, is aiming to embody: his project is to unite rhetoric, thought and action in a new politics that eschews narrow bipartisanship. Can Obama's words translate into deeds?" Nice article on rhetoric and oratory. Cicero really is quite the writer, you know; ages since I've read him, but this brings it all back.

"When the mechanics are broken there – no matter what great ingredients or designs you had – the dish disappoints. Execution is very much part of the analysis there – as is service, mis-en-scene. Food is never evluated (in the Guide Micheline sense) out of context… but the mechanics are fundamental to everything else." Robin Hunicke on another parallel to games criticism; I think she might be onto something, and it's another good contribution to the mound of Mirrors' Edge coverage.

"Though few gamers might be interested in long haul trucking, there is nothing wrong with concentrating on a small group of gamers and offering them the best experience they can get within their limited requirements. In fact, the more MMO developers who realize this—that a small group of loyal players is better than a huge group of disinterested players—the better, honestly." Very true – a nice conclusion to Matthew Kumar's round-up of a somewhat niche – but interesting sounding – browser MMO.

"The moisturiser, far from the trusted friend and counsellor of the first reading, is The Picture of Dorian Gray." Alex tries to read that Nivea ad that's all over stations right now. It is confusing.

"We think it's one of the greatest inventions of the twentieth century." Awesome. This is why kids go into engineering.

"Maps, databases and other resources that help you dig deeper." A shame the raw data isn't available, but great they're collating this stuff and seeing it as another channel of news they provide.

"A favorite on college Unix systems in the early to mid-1980s, Rogue popularized the dungeon crawling computer game dating back from 1980 (and spawned entire class of derivatives known collectively as "roguelikes"). gandreas software now presents the classic for the iPhone/iPod Touch." Oh god, Rogue for the iPhone. Unusual gestural interface, but it's a perfect port, and brings back memories of being 7 all over again. Needless to say, I installed it immediately.