Space Navigator
There is a new gadget on the market, the
Space Navigator
form http://www.3dconnexion.de/products/3a1d.php, a Logitech Company.
Is anyone working to implement it in Second Life? A developer kit schould be avaialbe for free.
Because the Client is open source now, one could do it himselve. If you got the time...
There seems to be a solution for Mac: http://www.orderedbytes.com/forum/viewtopic.php?p=1659&sid=2be21da3a813682555d2a6b3b4f843d7