[ITR] : It started in cinemas, but now 3D is everywhere.TV, gaming, handheld  consoles - it was the big selling point of the Nintendo 3DS - but now LG  reckons that glasses-free 3D might be the thing to help it fend off the  threat of a forthcoming Apple iPhone 5. But does it actually work on a smartphone handset? 
Big, bold and beautiful :
We can't help really  liking the LG Optimus 3D, even before we start to consider its visual  speciality. This is a big handset, though. A very big handset indeed.  With a screen measuring 4.3 inches diagonally, it's right at the limit  of appropriate sizing for a smartphone. Many people will be unable to  reach across the screen one-handed. We couldn't.
But the screen is superb. 480x800 pixels of bright, sharp rendering  make for great web browsing, video viewing and picture looking. Even in  2D.
3D fun :
The 3D element of the LG Optimus 3D only  kicks in when you choose that option from the home screen. Do so, and a  new interface pops up in the shape of a 3D carousel, offering a 3D  Gallery, 3D Camera, 3D Games and Apps, YouTube 3D and a user guide.
There are twin camera lenses on the back of the chassis. You can use  these to shoot 3D images at 3 megapixels, or 2D images at 5 megapixels.  There are a couple of 3D games, and a reasonable amount of 3D video  available via the YouTube link.
The LG Optimus 3D can even take a stab at turning 2D stills and video  into 3D, too - though we felt the effect wasn't as good as you get with  native 3D content. An HDMI cable can be used to send 3D output to a 3D  TV, if you have one.
One minor niggle is that you have to hold the LG Optimus 3D at just  the right angle for the 3D capability to work, and it really only works  for one person at a time. Nonetheles, we were impressed nonetheless.
And the rest?:
LG has put a fair amount of thought  into the rest of the Optimus 3D's specifications, and they're high-end -  though not quite flagship. There is a 1GHz dual-core Texas Instruments  processor and 512MB of RAM, which has been divided into two sections so  that the processor can access each - and, says LG, go faster as a  result. We still found the Optimus 3D a little sluggish at times,  though. LG's Android skin includes seven home screens and a  widget-resizing feature that helps you make the most of the big screen.