You can run Unity editor under Wine [1] and you can publish Unity games for Linux [2] but I assume native Unity editor support on Linux would require the use of a cross platform GUI library (Qt, GTK etc) as it probably relies on WinForms [3] which is only supported by mono (and I think OSX) up to .NET 2.0 [4].
You can run Unity editor under Wine [1] and you can publish Unity games for Linux [2] but I assume native Unity editor support on Linux would require the use of a cross platform GUI library (Qt, GTK etc) as it probably relies on WinForms [3] which is only supported by mono (and I think OSX) up to .NET 2.0 [4].
[1]: http://wiki.unity3d.com/index.php/Running_Unity_on_Linux_thr...
[2]: http://blogs.unity3d.com/2012/11/22/linux-publishing-in-unit...
[3]: http://en.wikipedia.org/wiki/Windows_Forms
[4]: http://www.mono-project.com/docs/gui/winforms/