Yesterday Sony announced the latest addition to its Android smartphone portfolio, the Xperia sola. Two of its most interesting features include a new "floating touch" navigation system for hands-free web browsing, which is exclusive to the Xperia sola; and the ability to change settings on the device using NFC and clever SmartTags.

To demonstrate the Xperia sola and these features, Sony has released a new video that shows them in action.

I expressed my confusion over the handset's floating touch navigation system in yesterday's post, and having seen it in action in the video above, I'm even more bemused by it. As far as I can tell, all it really does is highlight web links as you hover your fingertips over them. You still need to make contact with the display to tap those links.

I really can't envision how floating touch will be all that useful. Sony has promised that the feature will evolve and offer new functionality through future software updates, but for web browsing at least, floating touch seems, to me, largely pointless.

However, that shouldn't take anything away from the handset itself, which still looks like a terrific smartphone. It boasts an attractive design, that stunning Reality Display featuring Sony's Mobile BRAVIA Engine, and really impressive SmartTag functionality.

What do you think of the Xperia sola, and of the floating touch navigation system in particular?