Nice, though I switched to using the faster and more capable iCab ages ago. Have even replaced Safari as the system default browser with it.
On the other hand, I feel that switching from Safari to a different browser merely for the sake of in-page search would be overkill (like using a hammer to swat a fly) - I actually have no other beef with Safari, I genuinely like it. So I felt a bookmarklet would be the right-sized tool for the job.