Programming for Popular Android Screen Size Resolutions
http://blog.getjar.com/developer/code/programming-for-android-resolutions/
Resolution QTY 240 x 320 12 240 x 400 7 320 x 240 1 320 x 480 38 360 x 640 1 480 x 640 2 480 x 800 26 480 x 854 8 480 x 960 1 600 x 1024 1
極端な分布。