Skype is free Internet telephony that just works. Skype is for calling other people on their computers or phones. Download Skype and start calling for free all over the world.
It does more than voice chat, however; from the full description on the website, it seems to include all of the features that come with a full-blown IM app: text chat, file transfer, etc. Interesting that they’re pushing the Internet telephony angle… I wonder if they’re considering that as the hook that would entice people away from popular IM services. Well, and it does include a service that lets you talk to landlines and cell phones using Skype, for a fee. It’s available for Windows, Mac, Linux, and Pocket PC, which is cool. If nothing else, it looks super slick:
Let me know if you decide to start Skyping!