Maybe never and when I had some problems with it and contacted Microsoft UK they basically said they aren't kitted out to deal with them and I'd have to send it to America to get it repaired.
I wont be buying any more Zunes.
If you want a good iPod alternative Sony have a good range of MP3 players as do Cowon.
The Cowon iAudio S9 looks very exciting. If I were looking for a 16GB or less model I would consider either that one or a Sony model over a Zune.
The thing with Zunes is a lot of their features only really work if you live somewhere where a lot of people have them....