Marc Edwards over at Bjango is an extremely knowledgable and talented app designer and developer. If you make apps and you’re not reading his blog, you’re missing out on a great education. Last year he wrote a phenomenally helpful article on “pixel-perfect vector nudging” in Photoshop that was probably the single most useful tip I read anywhere in 2011. These articles are free, but I’d pay real money for them, just as I paid for his excellent Skala Preview, a Mac OS X desktop application and iOS app that lets you send real-time previews of your Photoshop work to your iPad or iPhone. It’s simple, elegant and awesome. This morning he also updated his shockingly comprehensive iOS Photoshop Actions and Workflows to version 1.2, with some minor tweaks and support for Photoshop CS6 (already!). In short, Marc is making incredible contributions to the field; give him a bit of your attention and, if Skala Preview strikes your fancy, a bit of your money. You’ll be well rewarded.