1. Afaik the N900 can't be run in mass storage mode and in PC suite mode at the same time. (If I'm wrong please tell me!) So after loading Porteus we need to disconnect the N900 and reconnect it in PC suite mode. To accomplish that I booted Porteus with the copy2ram parameter. Unfortunartely the changes* folder still needs the mass storage on the N900. So the only really safe method at first is to boot in fresh** mode. I think the changes folder issue could be addressed by copying it to a ramdisk and to mount that before disconnecting the N900. Of course at the end of the session one would have to write the changes back but that shouldn't be a problem.