Microsoft’s Windows 8.1 release has been held in much higher regard than the preceding Windows 8, largely due to the fact that it plays more nicely with those rocking a more traditional keyboard-and-mouse rig. Despite the reservations that some users have in relation to functionality and ease-of-use, though, the user interface has seldom offended, and today, the software giant has added 11 new themes to its flagship OS.

Apple finally unveiled OS X 10.10 Yosemite earlier on this week at its Worldwide Developers Conference keynote speech, and although we knew the UI would be overhauled in-keeping with the look of iOS 7, it was nice to check out the upcoming software in all of its glory. If you’re on a Mac, there’s a good chance you’ve already grabbed the Developer Preview for a first-hand look at what’s new, but if you’re on Windows, things are a great deal trickier. There are numerous ways to install OS X on a PC, of course, but if you’re merely a fan of the aesthetics, then you might want to check the just-released OS X 10.10 Yosemite Transformation Pack for Windows 7/8.x.

One of the most popular iOS jailbreak themes on Cydia has to be Ayecon, from Surenix. It’s been around in various guises for some time now, and has been installed on more iPhones, iPads and iPod touches than we care to guess, and we’re sure it’ll be installed on countless more too. In fact, we’re particularly confident about that now that Surenix has announced via a blog post that Ayecon for iOS 7 is almost ready for primetime.

Whenever Apple announces a new major build of iOS, it is always seeded to registered developers in the first instance, with the theory being that they can test out their apps for compatibility and ready them for the final build and also file bug reports which they find with Apple. In that sense, Apple tends to treat their registered developers as there own tried and trusted software testers, something that has worked out well historically.

Rovio Mobile’s super popular Angry Birds series of games, which are available on just about every platform from Windows to the Nokia’s defunct Maemo OS, has received its own theme for Windows 7.

The world of Linux customization is a complicated and fragmented one. There’s so much variety, but also a lot of, frankly, suboptimal themes out there. No GNOME themes, no mac look-alikes: these are truly the greatest-looking and better-made Unity themes, at least in my humble opinion.

Since the day jailbreaking has been legalized in US, things haven’t really changed much. Legalization did provide the jailbreakers and those with jaibroken phones a reason to exuberate but that’s pretty much the only thing they have gotten.

Windows Phone 7 is the new kid on the block and nobody can deny it’s one pretty-looking operating system. Now iPhone users can also join in the tile goodness thanks to a new jailbreak theme.

Themes. Everyone likes themes. Unfortunately for iPhone users though the only way to theme an iDevice currently is to jailbreak your device and trawl through the hundreds, if not thousands of packages in Cydia. That’s where Theme It comes in according to RazorianFly.

Windows 7 has this great option of allowing its users to set themes to customize their desktops the they want. The problem is that these themes are mostly limited to a few wallpapers after which it all starts to get boring again. This is where the new “Bing Dynamic” theme comes in! It automatically updates your Windows 7 theme with new wallpapers directly from Bing! Awesome isn’t it?

On the eve of the biggest sports event of the year, Microsoft has released a 2010 FIFA World Cup theme for Windows 7 which includes 10 amazing high-resolution wallpapers to decorate your desktop with a resolution of up to 1920 × 1200 (HD quality). Theme is based on the latest EA SPORTS’ official 2010 FIFA World Cup South Africa game for Windows.

An awesome new theme, for jailbroken iPhones has been announced, over at the iPodTouchFans forums. It is a full UI theme, mimicking that of Apple’s newest device, the iPad. It is currently in public beta, and is close to being released.