Today's Tech: Sony Xperia Z vs. HTC Butterfly, Dragons' Den star rescues Jessops, and BlackBerry 10 and the Android factor

There's little doubt that 2013 is shaping up to be a landmark year for the mobile industry. Alongside the arrival of 8-core chipsets like the Samsung Exynos 5 Octa, the proliferation of Full HD displays at the high-end of the smartphone market is set to dazzle consumers' retinas and tempt them to part with their hard-earned coinage in equal measure. So far, we've witnessed the blockbuster arrival of Sony's latest flagship Xperia handset at CES, while HTC made waves towards the end of 2012 by kickstarting the Full HD smartphone revolution. But how do the trendsetting Xperia Z and HTC Butterfly compare? Follow the link to find out.

PlayStation fans should pencil 20 February into their calendar, as Sony's next-gen PS4 console may well be unveiled then. Sony has sent out invitations to this year's PlayStation Meeting, where it promises that attendees will "see the future." The venue is set for New York, with the event expected to be live-streamed on the day. Stay tuned for more.

The new BlackBerry 10 OS has kicked off with about 70,000 apps – and it will have 100,000 by next month, if you believe what BlackBerry CMO Frank Boulben said in a Q&A at the BlackBerry 10 launch. How did BB10 get to such heights so swiftly? The answer to that is green, robot-shaped, and can be found behind the above link.

Jessops may not be coming back to the high street anytime soon, but the brand can count itself as a survivor of sorts after receiving a helping hand from Dragons' Den entrepreneur, Peter Jones. Details of the deal were not disclosed, but some of Jessops assets were also snapped up by Hilco, who recently rode to the rescue of HMV. Jessops filed for administration on 10 January, with PwC announcing the closure of the chain's physical retail operations shortly thereafter.