> Drivers are written anyway

Yes, and at least one of them is said to be not ready yet:

"According to one MOS betatester onboard network is not ready."
http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=40683&forum=32&start=140#787454

> *if* and *when* it'll be finally released we'll see how good or bad
> it'll performs. Until then no reason to argue about IMHO.

Betatesters of MorphOS on X5000 are allowed to post benchmark results. Some benchmarks were already posted here to this very thread, as you know.