Create mobile app with map, storing location, photo, and sharing it using phonegap framework - repost

Create mobile app with map, storing location, photo, and sharing it using phonegap framework User must see map in current GPS location and add pin to map either at current location or by entering address. User must be able to create lists, add locations to list, share list, and follow other lists. Must be done with PhoneGap. User must be able to login with: facebook,twitter,instagram or just create account. If logged with facebook,twitter,instagram account for user (at backend) must be create using available data from :facebook,twitter,instagram User must be able to share chosen list (1 list) on : facebook,twitter,instagram Must be able to see friends and global lists and follow them with buttons touch. Gobal lists will be added by us. You must created very simple backend (not need need for wesite or any admin). Backend must just store/retrieve account, lists, follows etc Wire frame document is created so you will get full info with step by step what to do after you are chosen. This is very simple/basic phone app with super simple backend so do not big high (bid is for both phone app and storing/retrieving from backend storage) you can use either ruby on rails or php for backend storage with JSON communication with app.