I've seen and tested one.
It was a while ago, but I seem to remember that the only advantage it had over the RiscPC in terms of speed was in the same situations that Kinetic also benefited from.
Prodution machines would also had benefitted from better hard drive performance, but frankly in terms of speed improvement over the existing machines of the time, I don't think it would have made a big enough impact.
Perhaps if it had had the 400Mhz CPU that Acorn wanted from Digital then things may have been different, but we know what happened to that.
User-friendly RPCEmu for Windows emerges Matthew and Peter Howkins have produced RPCEmu Spoon Edition, a more user-friendly Microsoft Windows-compatible build of the open source and cross-platform RiscPC emulator. Their version features an installer for Windows users, the software's source code and various bug fixes and improvements - although this Windows port has no networking support. 13 comments, latest by Spriteman on 9/1/09 11:44PM. Published: 1 Jan 2009