bradstewart: KitKat OTA has just started rolling out for the GPe.
It can be downloaded for sideload here.
For converting your HTC One to a Google Play Edition, instructions here: http://forum.xda-developers.com/showthread.php?t=2358781 <!-- include generic disclaimer about bricking device -->
I got through this conversion, all except the last bit... flashing the stock recovery. The link on xda above for the stock recovery downloads a broken zip file.
Does anybody have the recovery.img for 3.58.1700.5 Firmware?
Then my mission will be complete!
4.4 GPe is great, I now feel released from Sense!