Macpup is a small,light OS. It runs in ram and is very fast. It is not a striped down,bare bones,basic core OS. Macpup is a full featured systemright out of the box with apps for office,graphics,multimedia,internetand much more.And it looks really cool.
Macpup 550 is the latest based on Precise Puppy 5.5.0 , An official woof build of puppy linux that is binary-compatible with Ubuntu Precise packages. It contains all the apps from Precise Puppy with the addition of Firefox 22. It also includes the Enlightenment E17 window manager. The EFL libraries version 1.7.5 and E17 version 17.0 where compiled and installed from source.