Indeed, the Performa 6360 is perhaps named (numbered?) poorly. It is a PCI system based on Apple's "Alchemy" logic board design, which Apple used in the Power Macintosh and Performa 6400/6500. They also licensed this design to various Macintosh clone manufacturers, including Power Computing and Motorola.
We will be supporting most or all of the machines based on the Alchemy design in the BeOS, with the exception of the Performa 5400 (all in one units are problematic for us, unfortunately).