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I see you are in California... but here it is morning... burning daylight... and all that. I expect it will show up by the time the stores open here on the east coast.
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_1_3 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7E18 Safari/528.16)

I don't think apple usually releases iPhone/iOS updates first thing in the morning. It will be some random time, I presume.
 
Wohooo, iOS 4. Stay up and celebrate, I'll see if I can make it. It's 8:21:49pm here, idk if I can keep myself awake past 10pm :p
 
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