This is great. You focused on the advertising/marketing angle, where this will be powerful. It also should be useful for journalists. E.g., a restaurant gets robbed or burned down, and a news site can embed the Google 360-degree inside view on the news-story page. Or a reporter views the Google photo of the inside of a bank that's been robbed, to better understand and report on the sequence of events.
I do wonder how Google will keep up with changes as businesses remodel. Perhaps Google charges for updated inside photos when a business decides that its interior shot is outdated?
