I'd like to explore a few new options that this project could bring.
A lot of people still use a RiscPC as their main machine. No, really A lot of these people are ready to upgrade to new hardware, but refrain from doing for two reasons. Firstly, they want Select. Secondly, they find an Iyonix is simply not worth the cash. Some of us simply don't have the financial freedom to justify an Iyonix to ourselves, considering it's still lacking Select (by default) and is 3 years old.
VARPC enables people to run RO Select on a PC - on the condition that Windows is installed. However, many of us don't like Windows, for whatever reasons. The RPCEmu project allows us (in theory) to continue using RO Select but now on Linux and probably Mac OS X too. Not yet, but in theory.
Furthermore, RiscPC users do not need to pay anything to get there. RPCEmu is Open Source and AFAIK it's quite legal to extract RO4 from the ROMs in our RiscPC's and use them on the emulator.
There is no reason why RPCEmu cannot eventually run as fast or capable as VARPC. The main difference is that VARPC remains a polished, finished product on the condition you use Windows. Well, for me Windows is not an option and so the RPCEmu project offers a way out for me.
PS: I haven't mentioned A9home for two reasons. Firstly it's still not officially released and secondly it's not particularly a desktop computer, which the Iyonix clearly is. I think the A9home fills a special niche.