A new toy to add to my collection, SpaceNavigator.
Put some extensive testing into it the past day, installed it on Ubuntu 8.10, MacOS and Windows Vista 64bit.
My initial reaction is, wow. It really shows they put a lot of effort into making it work where ever one might need it. Ubuntu needed a bit of configuration, as 8.10 has this hotplug Xorg driver that gets in the way. Then just a regular install and it works with a updated Blender.
The configuration tools are the same throughout platforms and usability is also identical. Trough the device depends on the applications use of it for OOTB functionality, it also has some individual program configurations.
The SpaceNavigator itself has absolute positioning, although it registers as a relative positioning device (that makes linux use it wrong without drivers). Phisically its a big heavy metal ring with plastic/rubber controol ends. The metal is there to keep it grouned while you use the up/down axis. Rotating it left/right works to about 5 degrees and about double that for all the other axes.
The thing I disslike about it is really something I fealt before with the graphics tablet but didnt mention. The bright blue circual light. When I leave my pc standing for some time, monitor turns off and the room turns blue. (not as bad as with the pulsating bamtoo tablet but non the less brings alot of unneeded attention to itself)
The best use I found for it is Google Earth and Blender. Worth the 60$ ?

