One thing that might be fun to add to the ⌘1/2/3 tab post is this: while ⌘1–8 select tabs from the left, ⌘9 doesn’t jump to the ninth tab, but to the last tab:

I think it’s thoughtful – a recognition that both edges are important. (Previously we’ve seen Bear understanding that, too.)

Why not ⌘0, though? Sure, you can say it’s not as elegant (0 is smaller than 9), or that it wouldn’t work in Hungary…

…but I think the Occam’s Razor is simply that ⌘0 has already been taken by a popular “zoom to 100%” command by then, and overlapped too often for comfort.