I've been listening to music through the stereo speakers while looking at pictures or videos in my Gallery. Browsing full page websites with the firefox browser. Playing games like Angry Birds on the larger screen. Copying files, music, documents, pictures, videos to and from a thumb drive connected to the dock. E-mailing is easier having the keyboard and so is document creation. The touchpad is very responsive, but I am using a compact wireless mouse for even better navigation. If you can't think of anything to do with this, you're not trying. All your phone apps will run on the lapdock. The lapdock will charge the phone and seems to have a quite large capacity, although I can't find the spec for mAh.
My local vz store would not match online price! It was heartbreaking cause i was holding lapdock in hand ready to purchase. They said to buy it online. Stupid jerk faces! Guess I'll buy it online and have to wait for it.