The Steam developers usually make a number of intermediary releases before a stable and a large version of the application are launched. The current update is just one of these versions and, even if it's a Beta, some users might notice improvements.
Valve takes its time when it comes to improving the Steam client and its updates take care of just a few things. This way, it is easy to spot a problem if something goes wrong after an update for the software.
GOG.com is a digital distribution platform that is specialized mostly in old games, but the company that owns it, CD Projekt Red, wants to also extend the support to include Linux. They are now looking for people to help them with Linux ports, although it seems that some of them will be distributed in Wine wrappers.
The ultimate Linux gaming machine - aka Valve's Steam Machine won't be available until 2015. That's not good news.
The Steam Machines effort is a Linux powered gaming machine that could revolutionize console gaming and take on Sony's PlayStation and Microsoft's Xbox, if it ever gets out the door. Valve will have multiple hardware vendors partners building Steam Machines, but that's not the problem behind the latest delay.
Valve has just posted an update to the Steam Universe community. Long story short, they're back to experimenting with wireless controllers and are conducting live play tests with these new controllers. These play tests are generating a lot of useful feedback, but now with the time to incorporate these improvements, "we're now looking at a release window of 2015, not 2014." Though it's a bit unclear whether this will hold back a majority (all?) of the Steam Machines or whether just the top-tier, best units are now a year away.
If you've been following the market share reports, you know that Chromebooks--portable computers running Google's cloud-centric Chrome OS platform--are starting to succeed, especially in several niche markets such as the education market. Additionally, PCMag.com has a big story out on why Microsoft should be worried about Chromebooks, and Business Insider has argued that Chromebooks are the best hardware choices for many users. The fact is, some new incentives from Google as well as some newfound forms of compatibility with popular applications make Chromebooks more viable than they ever have been.