UPDATE: I missed it at first, but the Facebook icon when broadcasting a new message is accompanied by a purple arrow. This colour is hardly visible on the default black background, so perhaps Facebook's default colour should be set to something as light as Twitter's and Identi.ca's, to make sure it's always just as visible as those are.
As screenshotted in [1], in the new Gwibber, the icons for Twitter and Identi.ca have little arrows next to them. I have no idea what these mean, but Facebook does not have one even though my settings for all three services are the same. This led me to wonder whether I had accidentally disabled Facebook broadcasting and spend a few minutes in confusing while investigating this. If the arrows are only part of the icons for kicks and giggles, it would improve usability to remove them, I think.
[1] http://imgur.com/CdOkT
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gwibber 3.1.90-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
CasperVersion: 1.284
Date: Fri Sep 16 15:53:35 2011
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110915.1)
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gwibber
UpgradeStatus: No upgrade log present (probably fresh install)
Oh wait I can also just attach screenshots to the bugreport :)