Considering the general impression you get from reading places like Drobe, Iconbar, or Usenet, it's incredible that RISC OS Ltd. can make these claims. Oh, perhaps what they say *is* strictly speaking true - that few people have actually paid any extra money, but considering their past record on the issue then it's hardly surprising that that's the case.
If they want a true picture of desire from Iyonix users, and money from them, then they've lost so much trust that they'll probably never get it without a product. They must realise that, so you have to wonder if their tactics are deliberate (but quite why is a different question).
If they're going to continue expecting people to throw money at it then they should provide some guarentee, since they've lost so much trust - set a date for an Iyonix release, and return the money if it's not met.