I got that working at some point but have not checked it out recently on Fedora. It was just a mater of having the right shared libs for _64 side which I yanked from the eclipse repo.
I am unable to run Studio 1.0.1 on x86_64 (Fedora 8) and I think this is a known problem IIRC. Is there anything I should know before I start trying to figure this out? Anyone else with experiences or known workarounds? I would like to help with 64-bit testing before the 1.1 release if possible, so maybe I can work with Pierre-Arnaud to see if there is anything we can do?