At the core, it's the same old OS - Symbian S60, but 5th Edition (my N82 is S60 3rd edition, and they skipped no.4 due to us Chinese, ahaha). However, lots of tweaks has been done to make it suitable for finger-based touch, like button and icon size increment.
The height and width is exactly like my N82, but thinner. So it's not exactly very small either. Ah, but it's lighter.
The display is 3.2" with a good whooping 640x360 resolution (not as high as Touch HD, but definitely better than iPhone). And it comes with all the features you can expect from a Nokia, like Wi-fi, A-GPS, 3.2mp Carl Zeiss camera, 3.5mm jack...
Specs wise, this phone is very good for its price. At about RM1300+ before tax (direct convert, so i expect RM1500), you get all those features. Compare that to other touch based phones...
And note that this is NOT Nokia's flagship touchscreen phone, it's actually a mainstream phone. Which is why it's a XpressMusic, not N series.
Input can be done via finger, stylus (as seen above), or the plectrum. Stylus is used for handwriting input, while plectrum can be used if you're too lazy to pull out the stylus or don't want to smudge your screen.
If you're wondering why didn't Nokia dump the "old-fashioned-stylus", it's because Nokia's market is not US of A (iPhone land), but EU and Asia (where handwriting recognition is still used).
Anyway, head over to Jen's buddy's site >> http://symbian.smashpop.net/ to get some videos on some finger navigation. Let's just say, it's no where near as good as iPhone, but this is their 1st S60 touch afterall, and i think it's a job well done.
Or here's an official demo by Nokia themselves... which doesn't help make it look easy to use...
