iPhone 4 goes on sale

Apple's iPhone 4 goes on sale today and queues are expected all over the world as demand will almost certainly outstrip supply.

The latest iteration of the pioneering app phone - which addresses many of the shortcomoings of previous versions including a better camera, a front facing camera for video calls, multitasking and a vastly improved display - attracted 600,000 pre-orders on its first day on sale a week or so ago.

Originally intended to be available in both black and white finishes, it now looks like black is where it's at if you want to get your hands on the Holy Handset today.

Apple has admitted that there won't be any white iPhone 4s available at all today, and that punters will have to wait another couple of weeks to get one.

The Cupertino company said in a statement: "White models of Apple’s new iPhone 4 have proven more challenging to manufacture than expected, and as a result they will not be available until the second half of July. The availability of the more popular iPhone 4 black models is not affected."

There was no indication of what those manufacturing challenges might be, but we would guess that the white plastic used for the rear case has failed to live up to Apple's legendary build quality, and with a world full of Apple detractors waiting to pounce on even the most minor inconsistency in quality control, the company has decided that the iPhone 4 is too important a product to compromise.

We can't help feeling that Apple has left it a little too late to make such an announcement, although it has made it quite clear that white handsets were not available for pre-order.

We're sure there are people queuing outside Apple stores right now who were hoping to walk away with a white iPhone 4, but it looks like they will all be very disappointed.