It's not a piece of rock, a diamond is a rare-occurring piece of rare graphite. Everything rare and unsubstitutable or indispensable, comes with a high price. Unlike iPhones or practically any other gadget out there, you just need them to work their machines and sacrifice some of the more abundant materials on our Earth.

That's why the debate on getting the original iPad instead. Not paying extra for what you don't want.

BlackBerries also have this feature in their cases, it's a form of Proximity sensor, I would agree. And you should be able to cut that piece up and be able to sleep/wake the iPad with just that piece, for the fun of it. Just that the smart covers are more or less useless, it seems.

Quote from Qman:

The bluetooth could be a way of tracking people or something i think someone is controlling my IPT because it will close out to the home screen in the middle of a game and that makes me mad anybody know why it does that and if it can be fixed?

Nothing about the RAM getting hot. It's just running low on memory. Apps start closing when the device has about less than 10 MB RAM available. But jailbreaking solves this, there are tweaks that allow for expanding virtual memory, e.g. iMemory Enhancer from Gumball Tech repo.

Quote from technobot:

That is because Ram inside the device is getting so hot that it is nearly going to overheat so the ipod cleverly shuts down the application so it can free up RAM.

an add: restart the device to really clear the RAM.