Pixeet is a full, floor-to-ceiling panorama lens that works with almost any phone. It currently only supports iPhone but it will soon support Android and Blackberry devices as well.
How does it work? Well, you stick the lens right on the device and scan the room or space from left to right. The aluminum and glass lens picks up a full 360-degree panorama and then lets you post it to Pixeet’s own servers.
The lens will also work with other devices like digital cameras and webcams. It uses a magnetic ring that sticks to the device and holds the lens in place. There are plenty of these on the market but I think the more widespread compatibility is key here. The lens costs $50.