lesspipe.sh is an input filter for the pager less as described in its man page. The script runs under a ksh compliant shell (ksh, bash, zsh) and allows to view files with binary content, compressed files, archives and files contained in archives. A large and growing number of formats are supported both as plain and compressed files using compress, gzip, bzip2, lzma, lzip or zip.

A good overview/intro.

I like the way LESS combines powerful features with existing CSS syntax. (Though I'm still not convinced using one of these frameworks would be *much* faster than plain old CSS)

An application that watches a directory containing LESS files, autocompiles them to CSS. Makes trying LESS a teensy bit more tempting.