I'm fascinated by this application on the iPhone. It is rich and entertaining. It makes ordering pizza fun. Includes a game. Includes coupons to motivate purchase – but they aren't pushed out via SMS to trigger the idea of pizza for lunch/dinner.
Is it more marketing or commerce?
The connected nature of the application allows for updates – to the menu (for the basic categories) and promotions. Look forward to seeing this evolve to the point where local restaurant managers can do their own local promotions even based on registered zip codes. I see location-based mobile advertising playing out along these lines nearer term than the auto-tagging of a user's location with an ad to quickly follow.
Would prefer not to have to sign up online. Mobile-only use cases with individuals are limited today, but I think they will grow in number. Cross-channel (Internet to mobile and vice versa) is an interesting idea, but it isn't clear that it is needed or wanted – especially on platforms as capable as the higher end devices like an iPhone or Blackberry, Symbian, Palm etc. devices. –