are any of you intersted in trying my beta iPhone app?
Zev: I've got an iPod Touch, so I don't really think I'm in your target audience here, but here's some random thoughts that popped into my head, based on your Flickr screenshots:  For all views:

* Are you sure you don't want default statusbar instead of black one? Either the blue for the nav bar or the status bar feels somewhat out of place. Maybe using a darker blue instead?  For http://www.flickr.com/photos/39014474@N04/3765806150/ (Members)

* Are the phone/message/chat icons on the right side big enough to tap on without accidentally hitting the wrong one? And how does it work if you have two contacts in the same group? Might get a bit cluttered. If it works out, awesome. I do like how it looks and having the options available right away.* Is anything going to be placed underneath the person's name? Right now it's just white space; Maybe place the person's last status update or location down there?* Would tapping on a member bring up their profile?  For http://www.flickr.com/photos/39014474@N04/3765010947/ (Live Map)

* I know you say what the arrows do, but its not immediately obvious by looking at them. And what's the member info do?* Does this only show one member at a time? Or if there are multiple people from your group in the same location, would it show them as well (with a blue pin?)?  For http://www.flickr.com/photos/39014474@N04/3765010909/ (Chat)

* Does the tabbar show the number of unread messages you have? Can you be in multiple rooms or private chats with people?* The curve around the input field feels wrong.* How does it look with multiple people when the window is filled? Might get or feel cluttered.  For http://www.flickr.com/photos/39014474@N04/3765805994/ (Msg Board)

* Again, the curve feels slightly off here.* Can you use / instead of .'s between dates? It might be ISO 8601 compliant (I don't know if it is or not), but it looks weird.* Can you post videos?* What distinguishes this from Chat? Why not merge the two and keep some sort of history recorded? Yes, one's live and one's a record, but they serve an almost identical purpose.  For http://www.flickr.com/photos/39014474@N04/3765010849/ (Home)

* Whats the difference between the slightly faded group and the non-faded groups?* I like the indicator for how many messages you have waiting to be read and how many people are in the app and active, but it might be a bit small. And how does it work with long group descriptions? (ie: Another word added to Siamese Cat Lovers group description)