Status: Active development.

Link: http://messenger.sapo.pt/

Pros: Active development, very attractive design.

Cons: Home site is all foreign - not that that's a great problem! Sadly the application is not hugely customisable.

Review: I love the basic yet clean feel to the app and would heatedly recommend it alongside other Jabber apps available to you on Mac OS X. Truly, you guys have a real smattering of choices for this protocol! I'd say this is the greatest contender to Colloquy out there, if one discounts Linkinus on the basis of a greater difference in interface.