I think it would be useful if we could use the app to take bounties, buy items from vendors and xur and transfer items between vaults. There are some days when guardians can't get on to their game due to work commitments, family commitments etc and if we could do the above things from our smartphone, especially bounties it would be awesome. For example this Christmas I'm going back to visit my family so won't be able to stockpile eris bounties for when I return. In addition it would cut trips to the tower for bounties, transferring materials etc down so instead of logging in and going to the tower and then back to orbit. I could select the bounties while in work or on my way home and have them ready for when I get home so I can log straight in and complete my bounties. Please consider this Bungie as it would be incredibly useful to us guardians.