There's also the appeal that if you've got wrist/hand problems with your right hand, this takes a huge load off by letting you navigate the scene with your left hand.
I have a space pilot that I received for free. So far no zbrush / mudbox support but I hear that it is coming soon. For photoshop it's pretty nice as I can zoom in, change brush size, switch tools and set up custom scripts to run when i hit keys on the space pilot. It is usually used by your non-mouse hand. I'm right…
http://www.3dconnexion.com/ Saw an add for these in a magazine and I am wondering if anyone's used them for modeling before. I reckon that they'd take over your mouse hand, but then how would you move the cursor and not the model it self? I'm curious if anyone here has used them and how they found it. They're relatively…