This blogger is writing another post on a MacBook 2GHz core duo 2 machine with 2GB RAM, in Firefox running on MEPIS 7s RC1.
Read it here
So if you have a MacBook with a Boot Camp partition available, or a PC with a little room on it (10GB should be plenty for a basic install with room left to really give it a workout), MEPIS 7 is worth a close look. If youd like to wait for the final release before jumping in, that should be out well before yearend. Click the screen capture above to go directly to mepis.org and access their download mirrors.