"We have no escape", said one of my Mac-wielding colleagues.
So true now.
(Full disclosure: I've been writing at taoofmac.com for over 14 years now, and even though I get why Apple is doing this, still find it dumb because I live inside a UNIX terminal most of my time. I'm now considering switching to Linux as soon as I can find a decent mail client, because, like Jamie Zawinsky, I refuse to read my email in a browser, like an animal.)