We first found out just over a year ago that Bell was throttling Internet speeds for certain traffic particularly torrents and P2P applications. And it wasn't just for their own customers but the customers of any other ISP (i.e. DSL providers) reselling Bell's service branded under different names. These smaller ISPs, weren't impressed and sought redress by the CRTC but the CRTC ruled last November that the practice wasn't discriminatory. They're challenging that ruling. This time aother associations besides CAIP (Canadian Association of Internet Providers) have applied for an appeal of that ruling, arguing that the CRTC didn't understand all the technology behind their November 2008 ruling. The applicants aren't too positive that the decision can be reversed though:

"A lot of us are pretty convinced that the outcome of this new public proceeding has already been decided. It's going to be based on the CAIP decision."

CBC has the details:

http://www.cbc.ca/technology/story/2009/05/21/tech-bell-isps-internet-throttling.html