I bought this keyboard for when I travel and want to instant message with my wife while in Europe or any extended period where I want type on a real keyboard that clicks. It's small, compact, easy to set up. It takes a little getting used to because of the seam in the middle...the space bar has to be broken up and some of the keys near the center are a little different sized.
Since it is really meant for Blackberries and the like and you can't install keyboard drivers on the iPad (that I can figure out anyhow - perhaps someone can help here with a jailbroken iPad), most of the shortcuts do not work. However, the function volume up and down DO work.
All in all, I like it; it's better than the software keyboard for extended use. However, it's not the end all be all. I really liked the look of the Apple Bluetooth keyboard, but it doesn't fold up. This folds up to something smaller than the footprint of say a paperback book.
EDIT: I put this on eBay actually.