Map based smartphone app design & development

Map based (location) iphone app design and development. Existing wordpress website (Woo Theme ‘Listings’ theme) needs smartphone app developed across all major platforms and devices: iPhone, RIM (Blackberry), Android. Functionality: Google map APIs, Nearby, search, directions, filter by various criteria, image resizing, advertising display with tracking/reporting. Additional functionality: Facebook signup, FB, Tw and Foursquare social network site check-in and status integration, enewsletter signup, user profile management Needs easy CMS for constant updating, preferably using wordpress CMS (if possible). Initial bulk XML and CSV file ingestion required. Full brief with wireframes available upon request. TIMEFRAME: Live date 1 December 2011 IMPORTANT: Please provide a detailed and tailored brief as to why you are the right person for this project. Previous experience in map based apps must be demonstrated. Quote must include itemised costings. Potential for further projects redesigning existing website and working on spin-off websites/apps within 6 months. Look forward to hearing from you!