Re: "pilot test of a mail service"
Certainly. And historically those groupware alternatives have been so crap that only the kind of people who comment on articles at The Register would be willing to use them. The interesting thing will be if CERN have identified, or will develop, groupware alternatives that don't torture the end users and don't make the IT staff feel superior. So generically applicable that when you post at The Register, it's not even worth mentioning.