URL filter (no adv. banners), download files in background for later browsing,cookies filter, caching of 'noncachable' pages, multiple logs, can fake Referer, User-Agent and Cookie headers, fast operation, very configurable garbage collection, cached data can be shared between OS/2, Linux and Windows. Can be also used for web forwarding or transparent proxy.
http://home.worldonline.cz/~cz210552/scache.html
Source: OS/2 News and Rumors