No clue on the contacts thing.. I came from the Nexus One another sweet Google/Android phone and there were a few contacts that didn't sync over... I had to just manually do it luckily for me it was only a couple.. I had to also manually sync some Facebook friends to their card.... Over all it wasn't bad....
Congratulations on you new EVO! I was a Pre owner before I got my EVO. I had no problems moving all my contacts and calendar events. Since they were stored in Google all I did was log in to my google account and they were in my EVO.
Congratulations from me too. I think the EVO us the best smartphone on the planet right now. Have you gotten used to the big screen yet? Coming from the Pre, thats quite a jump in size