All the icons i am designing for iPad & iPhone applications are looking good on my PC. But the same is looking blurred on any iPad or iPhone. Can any one please help/suggest something, is there anything I am doing wrong while designing in Photoshop
Icons for iThings have to be created in multiple sizes. What appears to be blur, I suspect, is a problem with scaling. There is a good discussion here of all the necessary sizes (9 separate sizes) and the various quirky things that can happen to them when they are displayed on a particular device in a given context.
Be sure you're saving png files, not jpegs (especially super-compressed jpegs), and follow the Apple HI guidelines for iOS.