Anyone else use EPIM (EssentialPIM) - Free or Pro?
I've used the free version for years. It's a bit Outlookish - but you can carry it around on a USB stick as well if you want. Handles all my email needs, notes, calendar. contacts, tasks etc. Synchronizes with Outlook and Exchange Server as well and handles IOS and Android (Pro version). Does cloudy things also.
Doesn't currently handle Linux at the moment, though.