I believe the Canopy equipment is 900 mhz-based, which means that it might have some problems dealing with some older cordless phones (most newer phones use 2.4 and 5.8 ghz frequencies). There is one really serious benefit to the 900 mhz band, howver, and that is the ability to penetrate a minimal amount of foliage. I am in the process of trying to set up a neighborhood network and the trees are a pain in the ass. All of the normal consumer grade equipment (i.e. cheap) is 2.4 and 5.8 ghz. I would love something in the 900 mhz range. Unfortunately, Canopy equipment costs a fortune. It would make more sense to run fiber from house to house than use Canopy equipment.
As far as your specific question is concerned, gaming (if you're running a client only and not a server) needs relatively little bandwidth (I've gamed very well on a 144 IDSL connection). So the maximum bandwidth provided by Canopy should not be the issue. The issue will be maintaining a strong and steady connection and for the reasons stated above, the Canopy equipment should work well (unless you have a forest or mountains in the way).
