Actually I hear about GLX Gears pretty often, usually as a test step in setting up graphics drivers. But personally I am super fond of TiEmu because that's what I used all through college. As I got more and more into my CS coursework I found that I really didn't need my TI-84 _most_ of the time but I still needed it _some_ of the time. TiEmu helped shave about 1lb off my heavy backpack and let my brother use my Ti-84 for HS/College.