Its great to see people working on opening up the vast range of PCI cards to RISC OS users. I only hope this continues, and we also get some more work on USB drivers.
There are two free PCI slots in the Iyonix, and they are likely to be filled with a second graphics card for geminus, a digitiser card or addition I/O capability to support tasks which Risc PCs are currently doing, such as driving multiple serial interfaces, or SCSI devices if we get a driver for a suitable card. USB offers the potential of connecting far more than 2 additional devices, without opening the machine which not everyone likes doing, so I suspect would have a wider appeal. Also while drivers are not directly transferable, once the job is done for the Iyonix the knowledged gained can be used to support the Simtec and Castle USB cards for the Risc PC, opening up futher customers.