I think Steam is heading for a big revamp soon, and hopefully focusing on the store front cos it's poop. Big Screen mode is due alongside CS:GO (out in a week) and the regular programs are heading to Steam 5th Sept (3 weeks) and Linux is in works at some point soon. Mac release brought with it the 2010 redesign, so maybe a 2012 redesign might e coming along. Which would help with not having photoshop and such cluttering the game side of things (though there's hope given they finally allowed you to toggle DLC). They've had the EULA update too, so obviously they're in some kind of mood for updates (also of note is that their new EULA will more than likely apply to software through Steam too, it took 3 years to update to current form I doubt they'll replace it within a few weeks.) They're also due the new download stuff too, they've being gradually switching some games over, but none of the client-side changes are in place yet.
Some games can be run without Steam, may be the same way with this. I think a big thing to note is I've never really bought software. I think Office 2007 on the "Steal of the century" and Paint Shop Pro..7(maybe, was years back). Most software I run is either freeware, FOSS or stuff that'd still cost £100+ even with a daily deal in summer sale (and I've had no need to buy them for some time). Stuff like FRAPS might suit to have on, or maybe video editing software like Vegas n what not given Steam has ability to tie to Youtube accounts but (afaik) no way to record and or edit footage (Source Filmmaker isn't built for that as far as I have gathered).
Oh and: Called it! I pointed out it's worth noting that they'd been chatting with Adobe back when everyone else was focusing on ...I think he was talking the Linux version (before the "win 8 is a complete waste of everyones time" stuff)