If you call Google for warranty you'll need the name and email of the original purchaser. You tell them it was a gift to you. Make sure it turns on, works, and that if you're buying a 16GB unit that they didn't just throw an 8GB phone in a 16GB box.
Edit: Just got shipping notification. 16GB model, in Edmonton, ordered on the 3rd in the 1-2 week window.
Awesome. I'm in Edmonton, but shipping to Calgary. I'm also under 3-4 weeks, but I'm glad to hear that the phones are getting shipped out.