Acube Systems advertise AmigaOS4.0 for classic Amiga systems on several major Amiga magazines. The final issue of Total Amiga (UK/USA), the May issue of Amiga Future (Germany) and the May issue of Bitplane (Italy) will feature a full page advert of the forthcoming OS4 version for A3000 and A4000 equipped with Cyberstorm PPC accelerator card.
http://www.acube-systems.biz/eng/software.php