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Did you even read this article before posting a comment?

Just wait a year for the GPU and battery improvement and no doubt they will introduce one then

Of course I did... did you even read my comment that you are replying to where i said "the next update will have it"? They already have the power to do a retina now... That is why the Kindle Fire HD can do it at the same size (ok fine not EXACTLY retina but still pretty close given that size of a device).

its not close to the same battery power as the number of pixels is far greater for retina than HD on Fire HD

Resolution: 1920 x 1200 vs 2048 x 1536, thats a fair chunk more power

2304000 vs 3145728 pixels = 27% more battery drain

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