We've moved from Google Docs to Dropbox, at least as a placeholder; We're still trying to find a better long-term solution. AeroFS is leading the pack, once it is out of beta.

For Email, we plan to, but it's a bit more complicated.

I'll need to imapsync each account, so it's going to be messy, so I'll need a week or two to plan it out, and build/test a new Zimbra server.