Mobli launches its "My Last Instagram" contest with a 3,000-square-foot banner flying high above Facebook headquarters in Menlo Park, Calif., on Wednesday, Mar. 27, 2013. Through the #MyLastInstagram (www.MyLastInstagram.com) contest, Mobli, a photo- and video-sharing app for Android, iOS and Windows 8, will award one former Instagram user $100,000 for switching to Mobli. (Tony Avelar / AP Images for Mobli)

Associated Press
Mobli launches its "My Last Instagram" contest with a 3,000-square-foot banner flying high above Facebook headquarters in Menlo Park, Calif., on Wednesday, Mar. 27, 2013. Through the #MyLastInstagram (www.MyLastInstagram.com) contest, Mobli, a photo- and video-sharing app for Android, iOS and Windows 8, will award one former Instagram user $100,000 for switching to Mobli. (Tony Avelar / AP Images for Mobli)
Mobli launches its "My Last Instagram" contest with a 3,000-square-foot banner flying high above Facebook headquarters in Menlo Park, Calif., on Wednesday, Mar. 27, 2013. Through the #MyLastInstagram (www.MyLastInstagram.com) contest, Mobli, a photo- and video-sharing app for Android, iOS and Windows 8, will award one former Instagram user $100,000 for switching to Mobli. (Tony Avelar / AP Images for Mobli)