Check out this Interactive Portal Shirt being sold by Thinkgeek. They have two wireless video cameras mounted in the front of each shirt and two LCD TFT screens. The camera in either shirt transmits the image shown in front to the other (Like a “Portal). You would have to purchase two shirts to make it fully functional, however. These are too damn cool!

Get your Interactive Portal Shirt ($100/each) from Thinkgeek.com