That's all that has to be demonstrated for a new drug, at least in the US. Not that it is more effective than a previous drug, only that it is safe and more effective than a placebo. So a new version of an old drug might replace a phosphate group with a sulfate group, and it does not matter if the new drug is less effective than the old one, it can be patented and handed over to the marketing department for another 15 years of cash flow. There are a million variations possible, rinse and repeat as needed to maintain the monopoly and high price.

So swap the passenger compartment onto a new chassis. No special equipment required, drive the chassis into the cab similar to the way tractors pick up front end buckets. If you buy only the cab and rent the chassis then Initial purchase cost would be small. You could switch between long distance, short distance, truck, limo, mini chassis as needed.

Sorry, I have a patent on that. Rounded sticks are ok, at least until I can come to an agreement with Apple.

E.g. adding ip4.sixxs.org to the ipv6 address, http://ipv6.google.com.ipv4.sixxs.org/

Don't know if any allow numerical addresses. Is the ISP providing DNS service for adding your own AAAA records to your routed subnet?

Visual pinball emulates a boatload of the games from the '30s to the '70s, and also has many original tables (I can recommend the Three Stooges) Most are unlocked so you can diddle with the scripts or layout (e.g. flipper length and power).

It also integrates with MAME for playing ROM-based tables.

And that last bit of water comes back during storage in a vented tank. Worse yet someone intentionally cuts it with water to make a few more bucks.

An easy test for water in gas is to put 50ml of gas into a calibrated plastic bottle, add 50ml of water, cap tightly, and shake. Considerable pressure is generated so don't use your thumb in place of a cap . After settling the ethanol and water will mostly be pulled out of the gasoline into an upper water layer.
A dividing line at 40ml means 20% ethanol+water in the original fuel. Dispose of the residue responsibly ;)

Don't know about Sthil, but a small engine carburetor does not have the exhaust sensor feedback to fuel injectors. Fuel with less energy per volume will burn leaner so the engine will run hotter and become more likely to seize. The ethanol allows for a water fraction that makes the situation worse. Backing off the needle valve will compensate, that used to be the quick fix for an overheating tractor engine.

Avgas 100LL contains no ethanol or water, needs no stabilizers, and is mandated to have consistent properties over a year of storage. Small airports will often let you fill gas cans with it. It is dyed blue to to show that it is leaded and can't be used in automobiles.

Solving all current problems would be pretty good evidence that your software is not obvious to someone skilled in the art.

But mere touch screen virtualization of a slide switch that moves only in one direction, or a keypad (visible or invisible) that requires a particular sequence to be drawn to unlock, is no innovation. It's an obvious application of the hardware.

The first Lunar Lander was written for the CDC6400 around 1965 and used both console high-speed vector displays. It was amusing enough as a video game but to actually land without running out of fuel required some knowledge of physics. Can't find any images of it, but from this link :

http://www.marx-brothers.org/info/quotes.htm

My favorite

It's called lysdexia, you insensitive clod!

1967...math teacher got permission to use the school district's IBM1401 after hours. Programs were self booting decks of cards punched in binary, was great fun writing single-card programs.

Same math teacher was instrumental in bringing a PLATO III terminal to a classroom (video sent 90 miles through leased cable from CDC1604 at CERL) http://en.wikipedia.org/wiki/PLATO_(computer_system)

Punched cards lost their appeal after that...

More ideas here http://www.openideo.com/open/how-can-we-improve-sanitation-and-better-manage-human-waste-in-low-income-urban-communities/concepting/ecological-toilets-compost-or-biogas-networked-entrepreneurs-everybody-wins

The technocracy study guide is a good read http://archive.org/details/TechnocracyStudyCourseUnabridged

Mostly written by M. King Hubbert of peak oil fame to further the technocrat movement in the 1930s, itself a response to the monetary policies that led to the great depression.. Putting a price on things is what leads to financial speculation and concentration of wealth. Bartering can be done when both sides have the commodity in hand, or one or both sides can give an IOU for payment when the commodity becomes available. Such IOUs eventually become fiat money, which thus represents a general lien on future productivity. The drive to hoard such money leads to misallocation of resources. The system works smoothly enough when productivity is increasing, but due to finite raw materials and energy supply that can't go on forever

Their solution was to replace money by non-transferable energy certificates divided up among the population from the years total energy harvest, which would however expire every two years. The "price" of each good and service for the next year would be set by its embodied energy. If energy becomes more expensive then the more efficient processes would naturally be selected. This was predicted to reduce working hours while simultaneously maximizing the standard of living.

Interestingly bitcoins are the exact opposite of these energy certificates; producing them consumes energy today as a lien on future embodied energy. Workable when energy is increasing, otherwise not so much.