This is a Skype Plugin for Pidgin/libpurple/Adium. It lets you view and chat with all your Skype buddies from within Pidgin/Adium. You still need Skype to be running to be able to use it, but it lets you keep a consistent user interface and use all the other nifty Pidgin/Adium plugins with it, like spell-checking or OTR encryption. This requires skype.