Maybe Apple should be vigilant, because Toshiba has demonstrated a prototype of an LCD screen LTPS (Low Temperature Poly-Silicon) in Symposium of the Society for Information Display International. The screen size of 3.3 "to 4 inch. For version 4 inch, 367 ppi is supported by the pixels, which resousi iPhone ore than 4 inches 327 ppi sailing Retina. LTPS Panel supports 1280x720 dimensions, and can display high definition content. Screen Toshiba retina has 1000:1 contrast ratio. The resolution of the screen may look good, but by adding pixels means it will increase the number of transistors, which will then make a down power. Therefore, the phone will be equipped with this display will be packaged with great battery power. However, although was not yet known when this prototype can be applied to mobile phones. source: http://www.beritanet.com/Hardware/Hardware/Toshiba-Retina-LCD.html