Okay.

I needed to go to the hospital, but the car wouldn't drive because it said I had a broken brake light
I missed my flight and lost my job, because the broken brake light detector was faulty
My car drove itself to the repair shop, and got a ticket for a broken brake light on the way
My car drove itself to the repair shop while I was indoors, and I came out to drive to the hospital and had no car

And, if you overrided that (by using manual handle logged by special insurance sealed registrator) and then on your way
near red light your car would have been rear-ended by a heavy truck, leaving you paraplegic, would you be happier?

Why not? It's, at least, free.
http://www.khanacademy.org/about

Ruboto IRB (in Google play)
tuProlog (from their site)
BASIC ( in Google play)

Not so bad. Need no root.

An H-1B bomb?

Install AIDE and go for a walk in a park with your phone, having your IDE handy with you. Or put your phone/pad to a treadmill in front of you.

how to eat your cake and have it too ?

From the local media - the local administration has provided this guy materials, and he already has fixed the roof himself.
Nevertheless, seems like he is now trying to sue Roskosmos for moral damages.

You have called a plumber. Plumber came in with some guy. Some guy bringed his golden tin, went to your kitchen, took your hammer from your instrument stand and started to mint fake coins. Ow!

www.alice.org
It's a 3d world, which is programmed using visual programming language. For kids.
A free one, also have source code.
License is apache 1.0

Any time i hear about tornadoes and their damage, I think: why US military doesn't say a word in tornado prevention?
On most weather radars tornadoes and tornado-capable clouds are shown almost perfectly.
So why not
- fire missiles iodic argentum warheads to such clouds, forcing their rainfall.
- fire missiles with heavy warheads (conventional) to the already developed tornadoes?

Hm. A good idea to search prior art in an "Art of programming" by Donald Knuth.

Red cabbage (http://en.wikipedia.org/wiki/Red_cabbage) has almost black, dark violet leaves. It tastes good.

Imagine a Guified CLI, in which, for example, you can provide a set of images by selecting it visually in some gallery, and the command will look like
processImage [here comes the images in thumbnails] -size 20 -colorify
?