Very soon LG will release their biggest 3D tv. It will have a 72 inch full led backlight screen. To view 3d images you will still need glasses, but they stand that it is the newest 3D technology so far.
We all wait for the 3d screens to hit the mass market and to be available at normal rates, but there is another impediment that keeps the 3d market frozen: the need to use glasses to see 3d.
While the 3d is the most interesting part, the tv will be used most of the time to watch 2d content, so there is a need for a 3d tv to be very good at displaying 2d. This is why they are so expensive right now.