I am still skeptical for reasons spelled out here: http://www.scottaaronson.com/blog/?p=954 http://www.scottaaronson.com/blog/?p=954 It is unclear if they are

I am still skeptical for reasons spelled out here: http://www.scottaaronson.com/blog/?p=954 http://www.scottaaronson.com/blog/?p=954 It is unclear if they are actually taking advantage or quantum effects or if similar machines could be built using much simpler and cheaper classical effects.