Though I should point out that two of the Robotic Arms will be driven by an Iyonix, and the fileserver for the Viewdata BBS is an A5000. We will also have the famous RISC PC 'Pizza Oven' slice on display, and possibly another Iyonix (in an unusual 'clear' case). Furthermore, I am hoping to organise an 'Acorn through the Ages'-type display, which would feature a variety of RISC OS machines. And finally, as Tom points out, you have the talk from ROOL on the Sunday, which will be followed by further demonstrations and a chance to meet/chat with members of the ROOL team.
Anyway, I am more than willing to re-shuffle the floorplan to accommodate the needs of current RISC OS users if there's interest.
If you look at the plan there are 2 x 6ft tables (at right-angles) marked 'MISC HARDWARE' that are intended for BBC items. However, this area could in theory be turned into a general RISC OS zone. Anyway, my email address (should anybody wish to contribute some ideas for a RISC OS area) is dave.moore AT acornworld.co.uk