I just got a splashy email from Wind about improved service in Calgary. I will believe it when I see it, though to be honest it has been a lot better lately than this time last year.
It's on their Network Updates page as well.
I was really impressed visiting sis-in-law in Burnaby - great coverage, solid signal, and pretty good speeds from downtown Vancouver all the way to Abbotsford.
ETA: I'm curious if the dead zones I noticed with Wind have been improved - the worst were in the Blue arena at Crowchild Twin, and at Telus Spark.