Replying to revoke accidental moderation thanks to the very unhelpful auto-submitting dropdown!

Toddler Lock works nicely. Cool colours and sounds as they touch the screen. It temporarily replaces the home screen so it locks out phone/internet/other app access until an adult follows the onscreen unlock instructions.
https://play.google.com/store/apps/details?id=marcone.toddlerlock

It's a learning management system which has a major release, Moodle 2.0, last week...

SD widescreen sets are still 720x576. All SD sets will then stretch the image to get the correct aspect ratio. A 4:3 set stretches 720x576 => 768x576; whilst a widescreen set stretches 720x576 => 1024x576.

Haven't you just defined a specific form of evolution, known as evolution by natural selection ?

Most domesticated species (eg dogs) have evolved over the centuries as a direct result of human selection. Of course, until the twentieth century that selection was entirely based on external phenotypes, but this was still selection indirectly based on genetic information.