For those not in the know, this is pretty much what it sounds like: basically adding GPS-based location data to digital photos so you know exactly where any particular picture was taken.

ENGADGET: GPS photo linking

Clearly, though, as in the case of third-party guarantees on high-priced works, this is a much more attractive proposition for guarantors when art market confidence is pretty high as it is right now.

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The real reason, I suspect, that this has been done on the iPhone is that it is this anodised layer that you can then dye to pretty much any colour you want.

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It's this curious mix of new and old methodology that pretty much sums up the Serato DJ software it is designed to work with.

ENGADGET: Numark NS7 II Serato DJ controller hands-on (video)

"This bill is pretty much all as the government said it would be, " says Ms Henderson.

BBC: Shake-up for workers' rights

Apple's claiming a 7x improvement in graphics, and given that this thing is claiming such a huge swath of the mobile gaming market, it's pretty much a necessity.

ENGADGET: 5th-generation iPod touch hands-on! Hands-on