rather quiet here... i wonder wheter there would be an echo if i shouted this message ...
what about a "new" variation of line4: line4x4x4. Actually, the name says it all: it is played on four 4x4boards, representing a cube. Aim of the game: get four stones in a row (duh). Here is a link to try it out
http://www.cluchey.com/3d4r.html