I don't think public money is the answer. What is lacking is a compelling reason to use RISC OS. It's all very well saying that the iconbar works in a particular way, but that's just a question of taste, not a reason to switch. In the old days, Sibelius was a real reason to use RISC OS. Similarly, before Windows 3.1, RISC OS (unlike Windows) printed excellently to dot matrix printers. Sibelius was a compelling reason in the mid-90s. Nowadays, is there one? If RISC OS is worth investing in, private investors will do so. RISC OS companies wanting investment need to devise a strategy that will deliver profits.
The office suite that's really needed is OpenOffice.