3-D TV's

Recently heard on a podcast about upcoming announcements from to TV manufactures on a new line of 3-D TV's. Sounds like a good idea to me, but didn't LED just come out. And do consumers have to wear 3-D glasses all the time? Whats the cost of these new TV's? Is it going to be outrageous or at least affordable for those of us who don't have thousands and thousands of dollars laying aroud.