I've not had a single crash, and Safari still talks to Mail for me.

It certainly seems snappier than Safari 2, although I've no way of quantifying that. It's just a feeling.

One major improvement seems to be in the area of streaming and multimedia content. Previously I had to use Opera to access certain websites for viewing live sports scores and to listen to streamed commentary on the games. This version of Safari works flawlessly in that area, where in v2 I would definitely have considered those functions broken, particularly on certain content-heavy sites.

On the wish list, I'd love to be able to turn off link-underlining, which seems very old-fashioned and unnecessary to me these days, in the preferences. Safari is about the only browser I can think of in which it's not possible to do so (and never has been). Please, Apple, isn't it about time? ;-)

On the whole, Safari 3 is working like a dream for me. Fast, stable and functional on all of the website I've visited so far.