I believe the cost difference is mostly attributable to the authentic plastic shell of the S4.
Plus it costs good hard cash to manufacture an OLED display with pentiles instead of pixels and poor color accuracy.
Whole-home automation using Z-wave technology, including Internet control of lights, sensors and door locks, seems far more interesting to me.
wow, what an advertising blitz kwikset has paid for. several mac sites, wired, ...
Use yer noggin. A patent is effectively a government-issued, limited-duration monopoly over a novel design or method. In contrast to the classical monopoly about which you no doubt are narrowly thinking, a patent provides an absolute 100% exclusive monopoly.
Unfortunately the general public doesn't see a distinction between patents. All they see are companies distastefully cross-suing each other, with every other company pointing its finger at Apple as being the bad guy. This has been a PR disaster of sorts for Apple, as consumers validate the illegal behavior of companies like Googorola and Samsmug by buying their products instead of Apple's. That lost time and revenue can not be recouped.
Re: efficiency of LEDs, the payback occurs faster than it might seem at first glance. Any unnecessary heat produced by lights will cost extra in the summer for the air conditioning required to remove that heat from your home/business. In the winter, you'll see lower total utility costs by using gas heat instead of electric heat from lights.
Just to clarify, this is already true (LEDs will save you money) for bulbs that are used frequently. If you don't like to have delicate, mercury-laced devices around, that's another reason to switch from CFL now. And as you indicate, as prices decrease, LEDs will become cost-effective in more usage scenarios.
Here are a couple recent Pogue posts about LED bulbs:
And here's an old one: