It's already been pretty much confirmed that the white iPhone
4 will ship next week, and specifically, at least in part of Europe, April 27. A new report seems to assert that the April 27 date will be global, with the white iPhone 4 showing up at Best Buy on that date.
A source at Best Buy
sent 9 to 5 Mac an inventory screenshot that details an April 27th launch date for the white version at the retailer. While that screenshot shows the AT&T (GSM) version of the white iPhone 4, the white iPhone 4 showed up in Verizon's inventory database a week ago. Given that, we'd bet that a white Verizon version will be available at Best Buy that same day, as well.
The prior report said that in Europe, supplies would be scarce, and that a new supply of white iPhone 4's might take 4 - 5 weeks time. That would mean the resupply wouldn't occur until about June which, assuming the rumored September date for the iPhone 5 launch is correct, gives Apple three months to fulfill as much white iPhone 4 pent-up demand as possible.
It looks like the mythical beast is nearly here.