Hello escherian

I would suggest that you remove all the KDE little games and the old XF86 3x xservers, afterall the computer system would have to be fairly modern (P2-450 up) to use some of the intensive multimedia apps you have selected for Medialinux2, but you have chosen a lot of nice apps for the distro and I agree with you about keeping Open Office in, it must be daunting trying to keep all your favorite apps on 700mb, I think ultimately you have to decide what is the best way to go, I particularly think that you should put your focus on what your distro is about ie all those nice working multimedia apps, which I would like to see personally because of all those nice choice audio editors, software synthesizers, multitrack audio/Midi and video apps.
I have to give you a lot of credit for taking on such a feat, as a lot of mainstream distros have given this sort of thing a wide berth.

I will be very pleased when I am able to test it out, please finish it soon the Linux community is sorely missing something without it.