IPhone 4 shipping and overnight?

I just brought a iPhone 4 on AT&T.com and my shipping method is overnight. But I purchased the phone at 1 am today. When shall I receive my order since overnight?

They say overnight but in reality you get your package on 2 days so, you should receive your phone on thursday noon.

Buying iphone itself is waste of money and time, who cares whether it reaches overnight or undernight… Lol but anyways, overnight means, they pack and parcel it to courier in 24hrs which will reach u max. In 48hrs.

Within 3 days