Sharing pictures via the iPhone is easy thanks to apps like Instagram and PicPlz, but we haven't been able to say the same about video sharing.Enter Vidcinity, which lets you share videos with other users near the location your video pertains to. Users upload a video and the video gets geo-tagged to a virtual map for others to find when they're close by. Videos can be shared through the app itself, as well as e-mail (friends receive a link), Twitter and Facebook. You can also browse others users' videos and comment on them. While we like the idea of Vidcinity, its discoverability feature is virtually useless --we found only five videos in our area that had been uploaded in the last month.