Just wanted to mention that Linear has released their new zwave smart light switch cover in the US which has a similar form factor as the Osram switch (it fits over an existing light switch) and, assuming it can be set up as a button controller with SmartThings, should meet the same use cases as the Phillips dimmer switch and the Osram Lightify smart switch. Since the Linear is Z wave, however, it should not have the drop off issues that Zigbee switches do. So it may be yet another alternative for some people.