Remember the classic Casio MG-880? It hasn't been around since the 80's and was only sold in Japan, so.. If not, here is what you need to know: In addition to basic math calculations, it could be used to plink out electronic songs- think Atari tunes and basic 8 bit covers of popular movie themes. Casio is re-releasing it as a new-and-barely-improved SL-880 calculator that emulates everything the MG-880 could do, with the addition of a solar panel, larger buttons, and a bigger screen.