Slacker could be interesting. Although its personal players are not yet available in Canada, you can use any of the following type of mobile devices for it, without bankrupting yourself on mobile data fees:
- BlackBerry
- Android
- iPhone/iPod Touch
- Palm WebOS
- Windows Mobile 6.5
Its trick to saving you mobile data fees is its caching technique. Like a tank of gas, you load it up when you are connected to High Speed (non-mobile) Internet at home with hours ahead of your favourite station(s) using the memory on your mobile device. The bottom end iPhone, for example, has 8GB.
But, what might be Slacker's greatest advantage is that you can build your own music channel by selecting what artists and/or genres and/or years you want to hear.
ref. - http://support.slacker.com/app/answers/ ... a/r_id/166
BUT, before you buy anything -- Slacker, Sirius, iTunes, whatever -- spend the money for a one month web-based subscription to whatever service you think you want, just to be sure. Getting out of a contract can be expensive, not to mention any installation costs for car-based solutions.