with the LifX one you need to get the Nest device (99.00) AND the lifx bulb (single is 99.00). With Hue a starter kit is 188.00 (at [ame=http://www.amazon.com/s/ref=sr_nr_p_89_0?rh=n%3A228013%2Cn%3A322525011%2Cn%3A2314207011%2Ck%3Aphilips+hue%2Cp_89%3APhilips&keywords=philips+hue&ie=UTF8&qid=1410422225&rnid=2528832011]Amazon[/ame] ).
Interesting that the lifx one will also work with the Nest Thermostat.
Once I move away I just might try this Hue thing... sounds like something that would work well for me. Question.. how do you set it up for the door? Considering I usually live in apartments a doorbell flasher installation may not be the best thing to do (from experience with my first apartment and the fact I seem to move more than I ought to).
Would it pick up somebody knocking or use of a 'normal doorbell' that can just be stuck on. Sorry- my mind is still stuck on the old kind I had (or still have - needs to be tossed) that was a wired transmitter and remote receivers.