As has already been pointed out, you can use a USB floppy if you really need it. I can't imagine that they are expensive. There is certainly no real need for an internal floppy drive. The last few bits of software I've bought for RISC OS I've received via the Internet, so no need for any external drive there, and because most RISC OS companies are small enough to be flexible they may offer alternatives to a floppy (or CD) if you ask. Quite why you'd want one to put your own software onto an A9 is a complete mystery. If it's coming from a machine somewhere else then a USB stick is much handier, and if the other computer is nearby you may as well network them.