You are missing 90% of the phone if you are not using Outlook. I have my phone linked up with my companies exchange server. I get my emails on my phone before they hit my laptop. All of your contacts, calander info is kept here as well so everything is always in sync! Yes i lost all my contact info as well but when I did an active sync with outlook after the up-date every contact and appointment was wireless synced back to my phone. Took maybe 3 minutes. So Yes Yes setup outlook even is it is not wireless!