A good idea for the version 1 release,
how about when you go to file -> open theres another pannel or option, like open demo.
It would popup a box of games that you can open and mess about with. Messing about with games is a great way to learn and demonstrate how easy and good the product is.
Could have several, and infact it might be fun to run a competition to pick 3 demos user created to feature in the v1 release.