A recent study from M:Metrics shows that as the adoption of music phones has increased, so has the use of mobile music by consumers. You can peruse the whole press release here, but let me lay some numbers on you:
In the U.S.
Given that the majority of music phones (defined as those supporting digital music playback and having at least 47MB of internal storage and/or a memory card slot) are smartphones, it’s no wonder that they’re also being used for other advanced functions.
On a side note, where on earth did they come up with the 47MB? If I have a phone with 45MB, am I really less likely to put music on it than the guy with 50MB?