BundleForge is a repository for TextMate bundles. No knowledge of Subversion is required. Every offical bundle and some unoffical bundles.
To be specific, bundles having been developed are used by different text editors. If you consider a Windows alternative to TextMate, try e. Bundles are going to be more and more TextMate-independent. Most of the bundles are available under MIT license.
BundleForege is in now alpha state.