We have plans to make the iPhone app even more awesome (and also include more of the functionality of the web app) so stay tuned for that! Not sure if you have an iPad, but that's on the way too.
Fantastic to have you as a paying customer. Get in touch if you ever have any questions or suggestions!
I have two Buffer subscriptions, one for myself and one for a client and it has become a must use app.
Good work!