Ok, I've got a quibble here. If Safari 4's tabs started at the same size of Safari 3's default tab size, it would save time mousing over to the new + tab button (because Safari 3's separate tab bar could be double-clicked anywhere to create a new tab). But then it would look like a mix between Opera, IE8, and Chrome.
Here's the best compromise I can think of:
After clicking the
tab button for the first time, all tabs shrink to around the size of Safari 3's default tab size. That would inadvertently create space between the tab button and the tabs, which could then be doubled-clicked to produce new tabs without having to mouse all the way over to the
tab button. Or they could make the tab button move to the edge of each new tab if they didn't want people to double-click on said inadvertent space (because it would essentially eliminate the distance between tabs and the + tab button).
This would also look better, especially when two or three tabs are open at once because right now, they look comically long. Not a huge deal as I spend most of my time in NetNewsWire or on sites I already have in my Bookmarks Bar, and I use keyboard shortcuts 99% of the times.
But if IE8 and (especially) Chrome can so shamelessly mimic Opera's tab system, why not Apple? :D
On an unrelated note, I think the maker of
Inquisitor is eating his hat right now.
EDIT
While trying to think as though I were Apple - or at least the team working on Safari - I have an idea why they decided to put the + tab button all the way over on the right-hand corner.
1. Kind of obvious, but it does mean no matter what, you always know where the
tab button is. This is in contrast to IE8, Chrome, and Opera (which the former two obviously were obviously inspired by), which move their new tab buttons depending on how many tabs are open. Does that mean Safari 4's tab button placement increases usability? That's debatable. Sure, you know where the + tab button is no matter what, but it's all the way over on the right-hand corner.
2. This one took some thought. If Safari's default tab size were the same as Safari 3's and they put the
tab button right next to the edge (a la Opera, IE8, Chrome), it could have led to confusion between that and the new placement of the Bookmark button! This could very well be the main reason for the seemingly distant placement of the + tab button.
Neither Opera, nor IE8, nor Chrome have this conundrum because they either have no bookmark button at all (Opera) or use different images for their bookmark button icons (IE8 has Favorites and doesn't even have an image on its new tab button; Chrome has a star).