Tina Whitfield is CEO of EquisGlobal, a consultancy providing guidance on the mobile ecosystem. Most recently, she authored a comprehensive report - The Ultimage Guide to Location Based Services - covering the ecosystem players in location-based search technologies and advertising for mobile. Tina served as an executive consultant to Verizon Wireless, AT&T Interactive, and MyShape.com. Previously, Tina was appointed vice president of marketing for the much beloved Vindigo. Her knowledge is backed by 20 years of marketing, business development, and engineering management experience in San Diego's Telecom Valley and the Bay Area's Silicon Valley. Tina's career has spanned the development of many wireless industry 1sts for Qualcomm, Microsoft, Nokia, and marchFIRST/USWeb.