We can't see 440 pixels per inch so I wonder why we need them, but I am all for better specs particularly on screens.
From the BBC- "HTC and Sharp have unveiled devices featuring next-generation screens.
HTC's J Butterfly phone has a 5in (12.7cm) display offering an industry-leading 440 pixels per inch.
This offers 25-40% higher resolution - meaning more detail - than comparable devices from Samsung, Apple, Nokia and LG.
Sharp's new Aquos Pad tablet is the first to use its new Igzo technology which promises sharper images while using less power.
Sharp has previously said at least one of its customers also planned to incorporate the innovation in its devices.
Several device makers have signalled plans to announce new tablets over the coming weeks."