Giving Gwibber another shot, It's multiple choice for multiple streams and it's IMAGE stream are...

not matched by anything else. - Choqok is great also, but it added quite a few more KDE elements to my GNOME desktop that didn't need to be there.  PINO is nice, but single stream, and only one Instance. TwitTux is ok, but hasn't been updated since sometime in 2009. 

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