Looks like Bad Juju's acquisition of Desura will pay off for us Linux gamers soon. They tweeted to let people know the Desura client updates are currently in testing!
Just heard we have an updated @Desura Client App in testing for both Windows and Linux! Should release very soon; mostly stability fixesDesura (@Desura) December 5, 2014
It's really great to see them deliver on promises, as Linden Lab really didn't do much for Desura at all. If anything Linden Lab ruined the open source Desurium project for contributors by forcing a contributor agreement, and so Linden Lab couldn't use all the changes if people didn't agree to it, and they didn't. Bad Juju have a lot of catching up to do.
It will be good to install the Desura client again, as the current and very outdated official client was riddled with bugs. The open source Desurium was much better of course, but it's also outdated and unmaintained.