I would love a group feature that makes organizing games easier. We do Community Carnages all the time. Why not make it easy for a group to create games? People could add themselves to a time / slot in the roster, and an email would be sent to them the day of to remind them of their commitment. It would certainly add a lot to the whole idea of "groups" in the first place. Actually.... this doesn't seem that hard. A couple of webforms and dynamic options. It's acquiring a user's email that's difficult. I wonder if Bungie's API lets me access notifications on a user's account...
Well... Ok so Bungie wouldn't allow publicly accessable emails... But if it's a Microsoft account, I could just use OAuth. I wouldn't even need their credentials to verify who they are. The problem is sending a reminder.... how would I do that? The end user would have to give up their email, unless there's a way to access the notification thing. I'm considering just whipping up a standalone web app that would allow this basic functionality. The problem I have is authentication and reminders. Ideally, there would be an "owner" and the owner of the event could make changes, boot people who signed up, etc. But without authentication taht's not possible.