I guess one bit of confusiln comes with OTG vs Host mode. I've personally never used otg, but used host mode many times on N810. The otg adapters are nearly impossible to find, but female-female usb adapters can be found in almost any store, which is kinda funny, what good are they for besides n8x0 usb?

It's very clear tha n900 has no OTG, since the port is wrong type.

what hasn't been clear, I think, is whether the transceiver can at all be configured into host mode from software, or if it requires fifth pin signaling and otg adapter (which is impossible since n900 doesn't have it)