Yes its possible, but i would wait a month and get the real thing...there are a few updated to the rom, certain commands have been transfered there.
The funny thing is that i bought os3.9 and after a while reverted back to the old 3.1 as it suited my needs...but i did keep most of the version updates.
i got rid of reaction and workbench.library plus a few others ( i forgot which), as they were degrading my preformance... :-D