I am addicted to world news from the BBC World Service. However, I can’t carry my shortwave with me everywhere (I don’t think they broadcast to North America anymore anyways), and I don’t want to install Real player (which the BBC uses to stream its broadcasts). Luckily, I was able to find a couple of public radio stations that stream BBC programs via MP3.
The ones I have found thus far are:
I also found this link:
which looks like it might have some leads.
It is not 24 hours a day, but it is a start.