|Whatever you do, don't connect two of these together|
back-to-back: you could tear the space-time continuum...
[Of course this is a solution to a first world problem - when I was young we had to walk across 9 feet of shag carpet to even change the channel on our TV...]
Over time, as more and more internet controlled devices become available, the market for this device should diminish. It remains to be seen if they can actually sell them at $200 for a "starter kit" with three button-pushers.
If you need to do the same thing with a wall switch, you could either replace the switch with a WeMo switch or use the Switchmate switch cover – both under $40.