This was inevitable, I suppose. Castle have done everything to save the market, but they needed software development to go with the hardware. Lack of software development has made the platform unviable for productive use for quite some time. I have to say I wish I hadn't sold my Kinetic RiscPC, though
What I'd lke to see is the actual RISC OS GUI, not an imitation, taken from RISC OS Open and professionally integrated on top of a UNIX-like OS. Exactly the same idea as MacOS X. The new system would act like RISC OS, but be able to run UNIX programs. The UNIX bit remains Open Source, as with Apple, but the GUI is proprietry (or indeed open source, too).