I have bluetooth on my iMac and I regret having paid extra for a bluetooth keyboard and mouse. It takes such a long time for them to link up to the computer that I've replaced them with a keyboard and mouse that cost less than £20 for the two - the whole family prefers the cheap keyboard and mouse to the expensive ones that came with the computer. Until this experience I had always wanted a cordless keyboard and mouse for my Iyonix, but I've changed my mind!
And then there's the issue of security - your next door neighbour might be able to pick up what you're typing.
I'd like to see Ad6 working on software that would allow me to download files from my PalmOne PDA to my RISC-OS desktop computer. But if 60% of people who responded said they wanted bluetooth, Ad6 have to do what the majority of customers want.