Flamingo 1.0

Flamingo is a beautiful, native instant messaging client for OS X that supports Hangouts/Gtalk, Facebook, and XMPP.

Highlights: All-in-One design. Buddies, conversations, and chats in a single window. Multiple, detachable chats in a single window. Inline previews for images, videos, and tweets. Supports CloudApp, Droplr, Instagram, and YouTube. File transfer via direct connection (compatible with Messages, Adium, and other clients), CloudApp, and Droplr. Reply to messages right from the notification bubble in OS X 10.9. Full conversation history browser with fast message search and many filtering options.
NOTE: Due to service limitations, Flamingo does not support group, video, and audio chats in Facebook or Hangouts/Gtalk, and MUC (Multi User Chat) for XMPP is not supported.
What's new in this version:
Added preferences for enabling/disabling notification sound, as well as choosing whether it plays in the foreground and/or background.