Adobe Flash is way more suited for this sorta stuff. - Its UI is simpler and more intuitive - You have frames in addition to layers so you can organize your d

Adobe Flash is way more suited for this sorta stuff. - Its UI is simpler and more intuitive - You have frames in addition to layers so you can organize your designs even better - You can animate stuff (real nice for mobile app mockups) - It's got ActionScript incase you want to do something mindblowing As they say, Flash for web and graphic design, Photoshop for photography, and Illustrator for fine art.