Hertzprung: I though the definition of a killer app was that you bought the computer specifically to run that bit of software, while the products you list are good, they don't justify buying a computer for. Zap and StrongED are OK, but BBEdit on the Mac is a in a different class (on sheer features, let alone usability), albeit an expensive one if you want the full version. Artworks, never used it, but I doubt many Mac users have ditched Freehand or Illustrator to use it. Actually while we're talking about apps, why are there very few demos of software on RISC OS, i need a good vector drawing package, but cannot get demos of Artworks or Vantage to try them out, and I'm not parting with £100+ to find out the software is not suitable for my purposes. I'm like spriteman too, I just like RISC OS, that's why I use it, not because of the apps.