The first universal build of Skype for Mac was released recently. Version 22.214.171.124 now runs natively on both Intel- and PowerPC-based Mac computers, which boosts the performance of Skype.
The new version includes support for web presence, which allows you to showcase your online status on the web or in an email signature. They claim to have more language support in other, newer releases to come. This will expand the user base .