I had a problem with it not fast charging on my Edge Plus - tried a different USB cable and it works flawlessly every time - problem seems to be in the supplier cable that comes with the phone.
Seems like my GSM GNex has reached EOF :-X and my fixed income will make it a while before I can afford one of the new ones. So I am hoping you will pick me to receive the Nexus 5. It will be a great early x-mas gift from you to me. thank you!