My Dell XT laptop already does this? Spring based magnetic linked pressure sensitive stylus with a true capacitive screen to interface to?

Still, no-one really wants a phone stylus these days unless it's a professional tool where people need to sign things...

I'd vote for the Nokia BH-503. I tried out 4 other makes before settling on these, and after 6 months of use both pairs (the missus has one also) are going strong. I'd choose them as:
1. They have a great range of sound (others always have weak treble, or weak bass). Closest sound quality to 'proper' headphones I could find.
2. Battery lasts me about a week of use travelling to and from work, and I never switch it off . It automatically turns off 1 minute after losing connection if I walk away from it with my phone in my pocket. I switch off auto-connect on my phone so it prompts me when I switch it on. Much easier than it connecting without me knowing and then hunting for it in my bag when I get a call.
3. Pairs with other devices (like my work blackberry, and Dell laptop) with ease, including playback controls. Had a few issues with my laptop in Skype, and it was only stable in Mono, but I think this was due to my software, not the headset.
4. Music/call controls work well (with about a 1 second delay, though volume is instant)
volume ranges louder than probably safe without major distortion.
5. They are very strong and well made. Size is good - bigger than normal headphones, but much smaller than 'cans' - and back-headband is very comfortable.
6. Only complaint (though I'm quite used to it now) is that they weigh a bit more than might be expected, and are sometimes a little tricky to hook over top of ears. Still the sound quality and battery life makes up for that IMHO.
7. Retail price varies a lot so shop around. I got my first pair on ebay UK for £36 delivered, and second pair (missus thinks black/red looks nicer) for £48.

Maybe I've missed something, but I didn't think there were any S60 3rd Ed FP2 devices out there yet, and Nokia wouldn't release upgrades. Any suggestions how to upgrade firmware?

It is possible to dual boot OSX on Intel/AMD x86 hardware, though I've only done this on VMware on XP so far. There's a number of tutorials on the web found by searching "OSX x86" or "deadmoo". Performance on a 2Ghz Turion left a lot to be desired in my experience.