They are all the same. If you plan on buying full retail just get the developer edition from HTC. It's bootloader is already unlock and rooting it won't void your warranty. You'll get LTE with almost every GSM carrier (T-Mobile, AT&T etc) but you can't use the phone on CDMA carriers
Converting the developer edition to a GPE would make it the same device.
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Phone History/Current line up
Samsung Galaxy S5 - White
HTC One M8 - Gunmetal
Samsung Galaxy Note III
There are literally thousands of note taking apps available on Android, with practically every … more
21 Aug 2014
By Will Verduzco
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?