BARCELONA, MOBILE WORLD CONGRESS — Thanks to the original PadFone’s rather disappointing start, we thought the probability of seeing a successor at Mobile World Congress was slim at best. But we couldn’t be more wrong. Asus has just unveiled the PadFone Infinity, a 5-inch smartphone that transforms into a 10.1-inch tablet with the help of a clever docking station.

The device has some impressive specifications, including a 1080p display, a quad-core Snapdragon 600 processor, and a 13-megapixel camera. But do you really want a smartphone that transforms into a tablet? We went hands-on with the device to find out.

If you’ve been wondering where all of that water-repellant technology we’ve been seeing over the last year or two went, look no further than the Sony Xperia Tablet Z. You can dunk it in a fishbowl and it’ll keep on working just fine, or even use it in a pool for up to 30 minutes… as long as you don’t go below three feet.

Waterproof electronics don’t impress you? Fine. How about the fact that it’s the world’s thinnest tablet too, just 6.9mm thick and 495 grams light?

Like the Plantronics Voyager Legend we reviewed a few months ago, Jabra’s new folding-boom Motion series incorporates motion sensors — so they can do things like automatically answer calls when you place the headset to your ear, and even automatically adjust the volume.

PassWallet, an app that allows Android devices to use passes created for Apple’s Passbook service, has been updated to add supper for NFC. Users can now “beam and redeem” all kinds of passes if they have a supported handset, something Apple’s iOS devices — which don’t support NFC — cannot do.

Looking to get your lady a new smartphone this Valentine’s Day? What could be better than Samsung’s hot pink Galaxy Note II? It boasts all of the same features as its very popular siblings — including that large 5.5-inch display, and a speedy quad-core processor — only now it’s as cute as a kitten.