I have built a SharePoint 2013 instance in the cloud using tutorial from Keith Mayer http://bit.ly/1888fj0. I’m very excited to get going with this thing, and see what 2013 can do out of the box! I just accepted a job offer, and the company will be migrating to SP2013 ASAP. Let me know in the comments below if you’ve found a great quick overview/tutorial to get me started. I’ll be poking around in it for the next few weeks.