It seems like whenever somebody decides to become an iOS developer, the first thing they do is come out with a new Twitter client. Twitter clients were the fart apps of 2010. As a result, most of the time when word of a new Twitter client appears in my inbox, I trash the email without even looking.
Trickle (US$0.99) is refreshingly different. It does just one thing, and it does it very well: it displays the latest tweets of people you're following in bold white Helvetica letters on a black background. That's it. You can't use the app to respond or come up with your own clever tweets; you just read 'em as they come in. Developer Caleb Thorson refers to the app as a "passive Twitter client."
For consuming tweets, Trickle is awesome. It's easy to read tweets at a glance, and if you're busy, that's a perfect way to keep up with what's happening without being tempted to blast out your own opinion. Trickle is orientation-blind and looks good in portrait or landscape on iPhone or iPad.
There are two buttons that appear on the Trickle screen that give you an outlet to retweet or favorite a tweet. See something that's witty, interesting, or useful? Tap the retweet button (r) and get back to business. Read a tweet that is the best thing you've seen in years? Tap favorite (f).