Some keybindings in instantOS make use of the vim movement keys. They are taken from the text editor vim and are also used in lots of other applications. They work like this:
Up ^ | k left<--h l-->right j | V Down
They might look strange at first but the reasoning behind them is that they are on the home row and easier to access than the arrow keys when typing. Lots of Linux users are already familiar with them and using existing muscle memory is always good. It also leaves the arrow keys to be used for other functionality.