Re: Not So
The Titanium was designed with RISC OS in mind.
rcomp's ARMX6 uses the iMX6
and 4Ds RapidO Ig uses an IGEPv5 motherboard
Whilst the Raspberry Pi wasn't designed with RISC OS as its sole OS. I know one of the key Broadcom BCM2835 designers was a RISC OS fan and did the initial porting of RISC OS to the Broadcom chip. Thanks Adrian!