Here's an interesting study from M:Metrics (thanks SMS Text News!) that ranks multimedia features in terms of usage on a smartphone.

Note how a significant portion (as high as 20% in Spain) of respondents say that they use their phones to listen to music. To someone living in the so-called third world, this is a clear indication that people in the Western world tend to purchase more full-featured (read:expensive) phones. That's what you get when you live in a society that still considers the smartphone and even the PDA phone as a call-and-text-first device.