Very well designed. The quality is so well done in fact, that I'm surprised it's not behind a pay wall. This would be perfect for the iPad. I suppose giving us a 14-day play time should help convert.. but If I were MetaLab, i'd charge from day one.
Treat it like an iPhone app. plenty of folks waiting to click Install. Not only that, people tend to make time for the apps they pay vs. free apps. Get them to commit from day one. I think this is critical!
Regardless, Congrats! +1 for the Canada :D