Vineyard's apps:
Coinhopper, bitcoin flapper,...
Users can play these games, and get some bitcoin in return... So they have to download a wallet, and they're on their way to become bitcoin users
![Grin](https://bitcointalk.org/Smileys/default/grin.gif)
You forgot to add their latest game which is bitcoin basketball and its kinda fun too! But I don't think vineyard's apps will be a killer app though.