I seldom have to click on a tool bar or go to a menu to run my normal workflow because I assign one of the 12 mouse buttons to 12 of my most common tasks. The scroll wheel has no effect on the scale of my comp window because I turned off that function in the mouse configuration settings in the system preferences. These functions are assigned to the mouse buttons.

For example in AE I never have to go to the tool bar or remember the keyboard shortcuts for the pen tool, the roto brush, the selection tool, new layer or the type tool. For each app I use I have assigned mouse behaviors for the most common keyboard shortcuts. My standard mouse has software specific functions you can assign to buttons and behaviors from the System Preferences. I have several apps that are difficult and frustrating to use with the Magic Mouse. The problem is with Apple not Adobe on this one.