I use lot of x2go sessions and I find the x2goclient in Ubuntu rather wasteful of screen space.
Is there an alternative more streamlined version of the x2goclient? I am not interested in an alternative to x2go itself, just an alternative to the client it is bundled with.
By alternative client I mean an alternative session launcher and manager
PyHoca-GUI is exactly what you are looking for.
It is an alternative client developed by the X2GO Project. It is designed for for having numerous sessions open at once. (The regular X2Go Client is designed with thin clients in mind.)
Note: I am X2Go Developer :)
It is available on our PPAs: https://launchpad.net/~x2go
http://wiki.x2go.org/doku.php/doc:usage:pyhoca-gui
Per Wikipedia:
X2Go is not compatible with other NX servers and clients.
[emphasis mine]