Overall pretty nice app....when it works. That said issues that I have noticed (some may have already been brought up)
Device: Apple iPhone 4 iOS 4.2.1
1. when trying to load the map most of the time it says "File does nto exist"
2. The ability to send email to entire guild. You enter guild as the character name like you do in game and it just says "Character can not be found"
3. Last but not least.....MULTITASKING!!!!! It would be great for the app to stay connected to like guild chat when you try to switch screens. Maybe give a Push notification of a new message when the app is running in the background.