The original quote on Drobe referred to the A5 as a "proof of concept/technology demonstrator". I, like others, I guess, assumed that the technology being being demonstrated included the compute platform. That appears to include the WINTEL bits.
Personally, I am attracted to an ARM-based platform because I like the overall RISC OS/ARM conbination. If the technology being demonstrated is the RO/tablet parts, with the final product being a battery-efficient ARM-powered machine, then that's much more attractive.
However, I stand by my comments on the attractiveness of an XScale-powered PDA; not a directly comparable product but at least as attractive.
Either way, I wish STD luck in moving RO forward into new niches.