It would be awesome if sgs app had a way for us to make live videos, or at least a chat section so we could easily chat with the people that follow us or with the people we follow.
vidocq:
I think the SG site is not totally mobile friendly... so I doubt they will invest in a full-functionalities application.
memorandom:
The site USED to have a proper chat section, unfortunately they did away with it. Ironically during their attempt to MAKE the sit more mobile device friendly.