Gdipp does one thing much better than MacType in that it can integrate with applications that MacType can’t touch, namely those using DirectDraw calls to render their text. The downside is.. well..
This is just one example, I’ve also had the letter ‘l’ disappear in some applications. I’m sure there’s a software solution for this since the mac doesn’t have these problems even at low resolutions beyond just “Clear Type” stays in the borders and the Mac’s Adobe text rendering system doesn’t.
I still haven’t heard of gdipp or MacType’s successors though. Odds are there’s a project out there that’s just not getting enough coverage.