The random one or two minute site outages are me by the way, being a doofus playing with the nginx configuration file. I'm used to Apache servers so I'm having a bit of trouble getting it to dynamically subdomains in an intelligent manner without borking something.
But anyway, I'm a little late to the game in posting this: An official Blizzard armory application is finally out in the wild up on the iTunes store for both the iPhone and iPod Touch. I figured that one would eventually be released, given the market for one and Blizzard's crackdown on similar applications a couple of months ago.
The app itself is really pretty awesome, it does a lot more than I would have expected it to. I really like the calendar, which displays and tracks both official game events and guild events. It doesn't allow you, as far as I know, to add or modify events, but it does display all information as well as the invite status of anyone invited.
The application does require you to login to your account in order to access any of it. There is a preview video, more screenshots and a full feature list over at the official app page on the World of Warcraft site. Oh, it's FREE by the way.