I've never heard of that - this is all I could find:
http://www.igourmet.com/shoppe/shoppe.asp?cat=4&subCat=Breads
Would you really want to pay like $30 for a loaf of bread to be overnighted?
i dont think it would be that much, you'd basically just have to pay for the postage, i was thinknig like 10-15 bucks. just to try it, i would.