Nope worked for apple before so i know how it works! Got it done many many time before. Get out of your rock apple has a very big loophole about their warranty. You are the one that misinform cuz you might read it somewhere. Stop talking like you know what you are talking about.If it's through approved resellers, then yes. If the reseller chain is broken then no. You can't "always" get a warranty through Apple. This entire thread has become a mess of misinformation (mostly from you).
AT&T is an authorized Apple reseller. Those eBay sellers aren't. I doubt you'll be able to get Apple warranty if you buy from them.
Current products will get apple warranty no matter where u buy it from! Apple aint gonna void warranty of all current products sold by some unauthorized resellers! U prolly have never been to asia where u see that everyday.