@titan: I was just going to suggest that you add your ideas as a solution, but noticed that you have already done so. Thanks, we need to examine some solutions!

I would also like to concur with javispedro: There are many other discussions about /opt and the FHS around the 'net. Lets keep this discussion to the problem of finding a more robust way of using our two flash drives in the N900, rather than discus how standards should be adhered to or interpreted.