Nothing. You all should use Hydra, now called SubEthaEdit. It rocks and is lightweight as well. Personal Write does have a smaller codebase, and therefore takes up less room, but with the number of other activities in my life at the moment and for the forseeable future, I will not be updating the app. Those who use Personal Write b/c of the small application size (188KB) for special and enhanced uses (bootable USB, Zip, floppy, etc.) are free to continue using it, and please let me know if/when it breaks in a new OS update. Thank you. The possibility of incorporating the ability to load tablature as well as lyrics and have it highlight areas at a set tempo? For the present time, still a ways off in the distance. It will still be free.