A while back, I extolled the virtues of open source IRC client Colloquy for the Mac. Now I'm happy to report there's an equally terrific counterpart for the iPhone. Colloquy for iPhone puts IRC functionality right on your Apple mobile device so you're no longer tied to your desk when you want to stay logged into your favorite IRC channels.
Colloquy for iPhone has many standard features you'd expect: Highlight and vibrating nick alerts, WHOIS information for any user, searchable room member list, and support for all common IRC commands. But wait, there's more.
This handy iPhone app keeps you logged into channels even when your device is locked. An optional function lets you automatically join rooms when your phone connects to the Internet, or you can join multiple individual rooms manually. Colloquy for iPhone also organizes all your conversations so you can track them at a glance, and has a customizable interface that lets you tweak all sorts of app settings.
Check out these screenshots, then download the app from iTunes for $1.99. If you need to stay connected to IRC while you're on the go, this is two bucks that's definitely well spent.