except from not being a native application on Mac OS X, the Spark client (Version 2.6.3 (12555)) is not really a nice citizen. If I minimize it to the dock or hide it with Cmd-H the contact list keeps popping up after a minute. This is very annoying. A new message would be a valid reason for that, but it’s doing it all the time even when there is no new message. This is driving me crazy.
Edit: it even happens when I’m not trying to hide it and keep it open in the background. After a few minutes it moves to the foreground.
Another minor issue: I can open multiple preferences windows with the two different menu options (this is present under windows as well).
Can you please open Jira issues for that? (Running Lion 10.7.1 here).