EDIT:
Newbie error, the 5.3.7 is for the Kindle Touch

I leave my original post for history shame.
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There are a lot of software improvements for the NEW PW, I wonder if they are going to come to the current PW?
I tried the "Kindle Paperwhite Software Update" on Amazon and is still on 5.3.6, but when I copy the link, I changed the 5.3.6.bin to 5.3.7.bin and it worked! I wonder if that's it?
Try yourself:
http://www.amazon.com/gp/help/custom...64850#download
This is the link I changed. I'm still downloading the possible new firmware:
http://s3.amazonaws.com/G7G_Firmware...ndle_5.3.6.bin