Facebook just launched a web version of their chat client. Messenger, previously available on Facebook.com's chat and on mobile devices (such as iOS or Android), is now available through a clean domain: messenger.com.
I had been waiting for something like this since I joined Facebook. The fact that you can access through the web to Facebook chat without having to see all of your friends updates — plus tons of useless notifications — is really good news.
Funnily enough, the whole web application displays in pure iOS style. The entire user interface uses icons, colors, and layouts of Apple's mobile operative system.