Re: @ Korev
Calendars, task tracking, contacts...
That is NOT email (except for email contacts, of course). The fact that MS decided to lump it in with their own email client still does not make it email.
You do need Windows really for this though, I'm on a Mac right now and not of the above work that well compared to Windows.
Translation - MS can't (or won't) make their own fscking suite of programs work properly on other platforms they claim to support.
If you are tied to MS office in such depth then tough, you have no choice but to pay MS and accept any T&C they choose to apply to you. That is not the fault of the underlying OS, that is the fault of MS (and to some degree, yourself for buying in to) for such lock-in.