I plan to release mod-cache v1.0 in next few days. Because of hard-discovered bugs for dynamic content caching, mod-cache v1.0 is expected to be suitable for caching static web page. For better dynamic content caching please wait for ver 2.0 release.
Mod-cache v1.0 has been tested in heavy traffic servers(maxium 200Mbps or more) and I considers it is stable. Final work is document writing;)