The MadMan from the future explains the importance of adding to the time capsule. And attempts to corner the market in mayonnaise.
How do I find out more?
You can find out more by following the official blog, and by following on Facebook and Twitter.
There is also a Flickr page where you can paste your own images when the sims open. You make see some sneak images from the team before that so keep watching!
Main site: http://slcommunitycelebration.com/