I've heard a bit of musing lately weather there's a clear business model in Google maps and Google Earth. Well, I have an opinion on this, although I'm not going to jump into that right now. I'm more curious as to what you think? To get it rolling... obviously Google can take risks, therefore they will... that's what breeds innovation. Right now the focus is on getting the developer community to embrace the applications and the APIs and they are. Mainstream users are being encouraged to grab the free viewer (and even upgrade to the pro version) and they are. Obviously in time commercial add ons will be available as will the addition of commercial dataset plug-ins and just you wait... do you think advertising will pop up in your Google Earth viewer? Imagine as you fly over your location and cruise along 5th Street... up pops a message that points to a nearby coffee shop that is displayed on your map.... that's just once scenario. What's your take?