I remember this from ages ago that it was coming to the UK but saw it for the first time today
Really mundanely in the canteen at lunch I was hastily buying some lunch I noticed the offer on a bottle of Diet Coke
I’ve never bought a song on iTMS and since I now own an iPod & was in need of some liquid refreshment thought i’d give it a shot

So, I now have a barely legible Song Code to claim my free song – it appears that every bottle redeems a song as opposed to one of the US offers where it was only selected ones.
Here is the outside of the label lazily taken with my 1 megapixel mobile phone camera (so the quality is rubbish):

What to buy will be a difficult one as it’s only one song. Would have to be something that I would want to have on my iPod.
I notice in the small print it says 1 code=1 song
but also says Offer limited to 5 free songs per person
Meaning if I do find myself buying more bottles of diet coke to redeem songs I can only get five
Also, being DRM’d AAC I will be pretty stuck with it on digital media

Time for a bit of iTunes browsing I think