Mac OS X Moutain Lion and its Safari web browser sharing options allow you to share and send any web page vie email as a PDF attachment in a matter of two clicks.
You have more people using one computer and you don't want them to be able to shut it down using a shutdown button on Windows logon screen, this is how you remove it.
If you are a Nokia N9 and its Meego OS fan then this should really be a big deal for you and all the people that are still open for alternatives and new players on the smartphone market.
If for some reason your Android powered smartphone does not perform as good as it used to, or you want to sell it I suggest you to bring it to its original factory state.
Many times I find myself with a large number of opened tabs in Firefox browsers and thankfully you don't need to close the program in order to close all the tabs except the one I want to keep.
At any given time you can reset your Nexus 4 smartphone to the factory default settings, meaning you will bring your phone back to the same state as it was on a day when you took it out of the box.