Dingo is version 4.0 of the cutest live Linux distribution around. It's compatible with packages from good old Slackware, the distribution that has the longest history, but it's condensed into a tiny, robust package.
The live CD image weighs in under 90MB – even smaller than version 3. Once booted, the system runs entirely from RAM, so it's quick, and you can eject the CD if you need to. It sits nicely on a USB drive too, if CDs are too twentieth-century for you. The drive can also store user state and data, of course.
Read the release notes for all the details, or grab the teeny download and try it out.
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