Smartphones are a wave of the future, there is no doubt. While I disagree with the need for them to play music, just about everything else (including address book management, calendaring, PIM syncing, etc.) can make busy peoples’ lives a whole lot easier.
Of course, personal computers did that too. And we know what has turned into – a plethora of hacking, viruses, spyware, malware, spam, and other such nasties that keep Spamroll in existence.
You know where I am headed with this, so I’ll say little more. Experts are predicting huge outbreaks of smartphone viruses within a few years.