Well, here's a Chinese site that has about a zillion poker (and other) cheating devices for sale, electronic & otherwise. It's mind boggling.
http://www.xfpokercheat.com/buy-poke...g_devices.html
In the great "poker is rigged debate" thread, the many non-riggies there make some pretty good arguments against the game being rigged in general. But sites like the one above suggests that some segments of both the online and casino poker world are surely being compromised. What % that might be, I have no idea.
I guess I'll keep trusting our local casinos. But considering the above, I won't ever play for anything above maybe .25/.50 in any home, club or underground game anymore - almost no matter what.
Given a way to do so, cheaters are gonna cheat sooner or later 100% of the time. And there are clearly a lot of ways to "do so" out there that are all-too-easy to come by.