It appeats that a Facebook App designed for WebOS 3.0 was leaked in a recent advertisement poster by Best Buy. As you can see, there is an unknown app in the center. By looking at the image, you can see what it appers to be a "News Feed" in the middle section. At the bottom left you can see the "Facebook logo", at the right it appears to be a list of friends in available for "Chat". This seems to be very interesting for the HP Touchpad since it haven't launched and there is already a Facebook app available comparing it with the iPad which is going to be almost 2 years since it launched and no facebook app designed for it is available. I only wonder what other goodies is HP bringing along with the Touchpad.