I’ve been testing [Felix for iPad][1] for a while now and my biggest complaint is that the developer made me choose between putting it on my iPad mini, or retina iPad. The iPad version is seriously good and I feel lost without it on my iPad.
Felix is hands down the best App.net client out there. [Buy the iPad version][2].
*(I hear a rumor the [iPhone version][3] might be free for a few hours.)*
[1]: https://itunes.apple.com/us/app/felix-for-app.net-ipad-edition/id653222239?ls=1&mt=8
[2]: https://itunes.apple.com/us/app/felix-for-app.net-ipad-edition/id653222239?ls=1&mt=8
[3]: https://itunes.apple.com/us/app/felix-for-app.net/id562447652?ls=1&mt=8