Instagram made the announcement on their blog that you can now share photos and videos in both portrait and landscape orientation, and not be restricted to the 1:1 aspect ratio. Squares are still allowed though.
I have to say that I'm slightly addicted to Persicope and I'm not sure why? It might be the way Periscope feels like it brings you closer to the person, celebrity or event that is live streaming via the app.
We strongly believe that mobile websites are the most cost-effective way of reaching the widest audience on mobile. However, apps have become increasingly popular, with the average mobile user spending 20 minutes a day more on apps than they do on mobile websites.