iCab however stalled in the modern generation, with 3.0.3 being very old (I believe years actually). Well, that has changed. iCab 4.0 is now out, and has been compeltely rewritten (this time in Cocoa, breaking from the old Carbon codebase).
Unlike older versions of iCab, version 4.0 is powered by WebCore, the same core that powers Safari.