well there used to be a link to it on the front page, in amongst the list of alternatives to windows, but the webmaster took it off when Be Inc went under. not sure if this was such a good idea, because R5 is free to download still, so people should get the link to it, the operating system is still up and running even if there is no company behind it, hell, there's no company behind linux!!
Anyway, have a look, OpenBeOS is still in the list, i think, although they are in the process of changing their name due to legal reasons, so maybe it's not OpenBeOS anymore (i think OBOS is fine for a new name) but i'm rambling. Has anybody tried BeOS here? if so what?...