Homeseer has a brand-new line with one dimmer switch with instant status update, one regular switch, and one auxiliary switch. The dimmer switch has instant status update. They are not on the official compatibility list yet, but there is a community created device handler.
These are very plain looking white rockers, but they do have both a double tap and triple tap feature which use the central scene Command set and so should work much better than double taps that rely on physical timing.