People talk about location-based advertising, but location removes the need for advertising," said Seth Goldstein, co-founder of SocialMedia.com. "If you know where the consumer is, and that she is physically touching your brand, then you do not need to rely upon traditional mass-media channels to reach her.
From: "Facebook Poised to Take Geo-Networking Mainstream - Advertising Age - Digital."
Even better, what if the consumer is physically doing something *beneficial* with your brand? Walking? Running? Lifting? Dancing? :)