Well I would say that the current entries definitely qualify for the 'decent' tag so it's not impossible. I'll admit that my initial thought that I'd take one of my old VTT maps and compress it turned out precisely the way you mentioned, hence no entry... yet.

The useful part of this competition for me is that I have learnt a lot about compression and file-size. Now I'll never use a 75kb map in a VTT, but I'm sure any map I make after this will be smaller with the things I have learnt. In addition, this competition has raised awareness of VTT needs and styles, which can only be a good thing in a community such as this.

Now if we can get rptools to sponsor a competition over here that showcases maptool's capabilities rather than rpgtonight's rather slender file-size limits then you'll have a ball-game on your hands