> The most innovative mouse in recent history - the top is a touchpad. The problem is it is difficult to hold the mouse and perform the two finger scrolling necessary. Clicking doesn't give you the feedback you would like and again there really is only 2 buttons available (left and right). It is difficult to use a touchpad on a device intended to slide around your table, and tough to click a mouse on a touchpad.
You don't need two fingers to scroll. One is sufficient. Clicking is an audible and you can very well feel it with your finger. It's not a touchpad nor is it intended to be used as a touchpad. It's just that instead of scrolling using a tiny nudge on the top you can use way more surface (anywhere in the top 2/3 of the mouse) to scroll in any direction you want.