I guess you could say that Wind "blows". Ha ha ha (bada boom bada bing! I'm here all week! Check out the veal marsala while you're here.)
But seriously, I have heard different things about Wind and I want to switch from Fido because I'm getting hosed with this data plan that has not changed in going on 4 years. Wind was advertising unlimited data and some really good rates and I've yet to find a carrier that has a decent data plan for Blackberry. Koodo has some interesting plans but I think that's for kids and someone said they're somehow tied in with Telus, which I am not fond of. Telus has horrible data plans and equally bad call drop rates and sketchy coverage. I know Public Mobile is pretty much only prepaid and is just in Toronto and Montreal and I have no idea about Mobilicity.
Let's put it this way: the owner of Wind Mobile was quoted a few months ago as saying he wonders why they even opened in Canada, with the way our telecom industry protects the big 3 (Robbers, Telus and Bell.)