I don't understand the value of this library. For non-SSL static files, the usual techniques apply: long-term expires headers, gzip compression, combining mult

I don't understand the value of this library. For non-SSL static files, the usual techniques apply: long-term expires headers, gzip compression, combining multiple scripts, CDN, etc. For SSL content, IE7 and FF3 will use disk caching for static files if cache-control is public (FF2 requires a configuration change). Is there a use for this I'm missing?