That's a cool idea. The problem with it, though. Is that you'll have to change all your accounts and profiles to this e-mail, then the password reminders etc,

That's a cool idea. The problem with it, though. Is that you'll have to change all your accounts and profiles to this e-mail, then the password reminders etc, come to this address. This address would then become, probably, the most important e-mail you have (so security vaulnerabilities are a extra-big no-no) Then there's also the added overhead of having to deal with an extra service, simply for notifications that you usually just throw in the trash. But maybe if it wasn't it's own e-mail address, but that you'd rather have your app connect to the user's e-mail inbox and download, and even delete, the notification e-mails. Then it could be pretty cool (in my opinion) Good luck with it :)