Talked with a Shaw employee a couple of weeks ago that was beta testing it. Said it was pretty cool. Sounds like it might be a little buggy out the gate but expects to be fixed either before launch or shortly after (typical beta stuff).
edit:
http://www.shaw.ca/Gateway/Features/
hmmm, looks like it's web enabled (under the coming soon section). Hopefully this paves the way for editing of pvr timers with a web interface or phone app.