MacBook Air and iPad

Flipboard app on iPad

Widescreen: 2560x1600 (compatible with any smaller widescreen)
iPad: 2048x2048 (compatible with almost all tablets)
Samsung Galaxy and iPhone: 1080x1920 (compatible with almost all new smartphones)

MacBook Air

Widescreen: 2560x1600 (compatible with any smaller widescreen)
iPad: 2048x2048 (compatible with almost all tablets)
Samsung Galaxy and iPhone: 1080x1920 (compatible with almost all new smartphones)

Ultrabook MacBook Air

Widescreen: 2560x1600 (compatible with any smaller widescreen)
HD1080p: 1920x1080 (compatible with any smaller HD screen)
iPad: 2048x2048 (compatible with almost all tablets)
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