We all back up our PCs, right? Okay, well, we should back up our PCs, right? Well, smartphones and tablets have become so ubiquitous that we need to back them up now too. It’s time. Important photos, videos, contacts and music are now strewn across small, easy-to-lose, easy-to-break, highly pilferable devices. Fail to back up this stuff at your peril.

It’s not all photo apps and more apps when it comes to taking photographs with an Android smartphone — there are some basics that you need to know, unique to smartphones, that have nothing to do with imaging apps. If you’re finding that you’re migrating from a dedicated digital camera and taking more photographs with your phone but are disappointed with the results, here are some pointers.

The first reviews of the Samsung Galaxy Gear smartwatch have hit the Internet and they are generally tepid. However, “I’m not sure how anyone can give it a rating of anything until it is put through its paces over time by consumers actually using it in real-life situations,” said Larry Chiagouris, a professor at Pace University. Many reviewers expressed concern over the Gear’s $300 price tag.

Google on Tuesday rolled out a feature for its recently launched Android Device Manager that lets users lock down a stolen Android device from anywhere, via the Web. “This is something that should be built into the OS and the platform because it’s an inherent security feature,” said tech analyst Rob Enderle. Google is late to the game in rolling out its remote lock capability.

Aiming to capture a piece of the market that has given the Raspberry Pi such a warm reception, SolidRun on Wednesday announced a new tiny computer of its own dubbed the “CuBox-i.” Available in four models with prices starting at $45, the tiny computer includes an OpenGL|ES 2.0 GPU with OpenCL 1.1 embedded profile support; and up to four i.MX6 Cortex A9 ARM processors with as much as 1.2GHz each.

Canonical raised more than $12 million over 30 frantic days of crowdfunding its ambitious Ubuntu Edge superphone project, but it was still short some $20 million by the time the effort closed on Wednesday. The company’s target was $32 million. “We raised $12,809,906, making the Edge the world’s biggest ever fixed crowdfunding campaign,” wrote Canonical founder Mark Shuttleworth.

HP is reportedly working on a series of Android devices, the first of which could be a high-end tablet powered by Nvidia’s Tegra 4 processor. The move is a sensitive one for HP, which tried to crack the mobile market in 2010 by purchasing Palm for $1.2 billion, but saw that investment go down the drain.

The year is starting out with what may turn out to be significant changes in the mobile operating system market, with open source software playing a significant role just as it has in enterprise software, virtualization and cloud computing. With fading heavyweights and interesting new challengers, there are changes afoot in the mobile OS market.

Canonical this week announced Ubuntu for smartphones, a version of the Ubuntu Linux operating system aimed mainly at high-end superphones and entry-level basic smartphones. Ubuntu is compatible with a typical Android Board Support Package, said Canonical, which provides engineering, online and professional services to Ubuntu customers.