I just ordered from Sprint today and they told me a week for a 64GB black one but I don't know what Sprint's normal lead time is. AT&T was always same day or the next day whenever I ordered anything that was an in-stock item.
My point is Sprint may still take a week to ship even with in stock items. This is the only thing I've ever gotten from them.
While I was with Sprint from 2000 to 2011 (can't believe it was that long..), everything we ordered over the phone arrived within 2 days. That being said, we purchased the majority of our devices via retail stores, so maybe our shipping experience was not the norm. -- University of Southern California - Fight On!