Periscope was not the first service to offer the ability to live-stream video on mobile, but its popularity and success was bred from simplicity. Since Twitter owns Periscope, the streaming service can easily access the social network's data, making sharing the streams very easy. Third-party services that depended on Twitter for its livelihood -- such as Meerkat -- were quickly shut-out and died. While Twitter could rest on its laurels, the company is continually looking to make Periscope even better. Today, the live-streaming service gains a very cool new feature -- 360-degree videos. Unfortunately, there is a small catch. "With 360… [Continue Reading]