mrfusion

for pc, win 7, for touch screen tablets, maybe android or ios.

for tablets, android > ios > window 8.  (means android better then ios, ios better then window 8)
for pc, window 7 > xp > win98/se/2K > window 8.1 > window 8.

screw the security features, people can't see that, for microsoft, design pc like touch screen is doomed from the started.