Six to Eight (sixtoeightapp.com), an iOS Stack Exchange client.
Why not download now? It's entirely free, and recently updated to v1.2!
Version 1.2 has just been released, with crash fixes on iOS 6 and iPhone 5 support/b>. Look out for a much improved version in the new year!
A pocket sized client, for you to track your activity and get answers to those niggly, "need an answer right now" problems. Full browsing, searching, statistics and user tracking.
Bug reports : I hope you're not having any problems, but if you are, please see the bug reporting answer to this question. You can also see my bug analysis and advice to other app authors.
http://www.sixtoeightapp.com/media/screenshot-1.png http://www.sixtoeightapp.com/media/screenshot-2.png http://www.sixtoeightapp.com/media/screenshot-3.png
###License & download.
Available now from the iTunes App Store for the princely sum of $0.00. In GBP, that's £0.00, and in Mauritanian Ouguiya, it's أوقية0.00!
###Platform
iOS 4.3 devices.
###Contact
I'd love feedback here, or by email (my site is http://www.archgrove.co.uk, email adamw@).
###Code
Objective C, using my own API wrapper (focused on easy UI concurrency and state caching/update). As of July 23rd, you can get big chunks of code from the open source page. I'm also writing a few blog posts that new API users might find useful.