is there any software required to manage/transfer stuff to/from the n4? I'm coming from the iphone so not quite sure how it works on the n4
Not for a PC. If you want to transfer files via USB and you're on a Mac, you'll need a helper program called Android File Transfer.
Sent from my Nexus 7
Yes, its all OTA. and for your original question, for PC you don't need anything. for mac you need Android File Transfer made by Google.thanks, what about software updates? Is it all OTA?