Here's a quick review upon opening the GoPro Hero 3 Box.  - Packaging is alot better than the Hero 2 and Hero 1.  First off you must download the user manual.  At the retail price they should provide a manual for you.  Unpacking the box, I found two cards, "Before Using a Product Update is required".  Now they just released this thing a day or two ago and it requires a update already, dang!!!!  Ok, on to the camera.  Yes its smaller and has a nice feel.  The buttons are marked giving it the appearance of easy operation.  Notice I said appearance.  I fumbled with the waterproof case trying to open it to remove the camera.  This took me about 1 min and a half and I figured it out.  The locking handle is great, but it comes off completely once you have the case open.  So be careful there.   Back to the Camera!  The GoPro 3 does not use your full size memory cards any more, but instead use the micro cards.  (Guess I need to change my inventory in memory cards......Got about 20 coming up for sale, you interested!)  The slot for the micro card and the usb connection is covered by a removable cover.  Its small and black - so what that means is there's a very very good chance you'll lose it.  (I see a opportunity for someone here!)  
There are alot of improvements here, but some I don't think were well thought out.  As I get further along I will post my findings!
Shawn