AppleInsider's Daniel Eran Dilger put together a lengthy five page review comparing iPhone to Palm's obsolete operating system, drawing comparisons to features, hardware, software design and usability. Guess who came out ahead? I'll give you a hint; it wasn't PalmOS.
Funny thing is, I was in the middle of writing an identical feature article for this site, some time ago, and gave up when I realized the entire topic was irrelevant because PalmOS (Garnet) is a dead, long forgotten platform that holds little interest for anyone these days. I would draw more interest by comparing iPhone to Mike Vick's ego.