...does anyone have any ideas on what I could do to improve this?
Maybe Atari OS should be an adapter, where you put a cartridge in the adapter's slot, then an icon pops up on you desktop and you can play the game by selecting it. Maybe even multiple slots! (If there is still space) Other than gaming, a simple ''sleep mode'' where the screen turns black until you push fire. And how about a browser that goes the the AtariAge website, so you can download simple games for your Atari OS.