Ok I got 2 questions:
Do we have any clue how does Incredible (for example) works? It has 8gb internal plus External, they both mount on usb.
Doesnt the fact that we can mount the internal storage on the computer, etc etc, can be a reason for the corruption of partitions? (maybe unplugged before unmounting by mistake or stuff like that..). That may have happen to almost everyone, everything starts crashing, FC, etc, all because of the repartitioning. Maybe paradigm 2 its better and correct.
Another quick thing, is it possible to mount internal on /scard and external on /sdcard/sdcard2? That would make both accesible on usb mount no?