Ivan: On the 2400, one can currently boot from an external PCMCIA drive, OS9 is known to work. I haven't experimented with booting OS10 externally, though the drive is mountable since 10.2. I believe one can boot from an external USB and FW drives with the New World firmware. Would someone please verify this? http://www.addonics.com/products/flash_memory_reader/pocket_udd.asp Here is a link of such a product. It supports both USB and Firewire. So this might just give enough incentive for one to migrate from a 2400 to the new 12" Powerbook. jake > I have no idea about these things -- I didn't know they existed. But I'd > be quite confident that you can't boot off of a PCMCIA drive, because you > can't boot off of any USB drive. You can of course boot from FireWire. > > As for Ethernet, etc, while I won't get into what the point might be, how > would they work? Ethernet cards don't work as is without a driver, so > you'd need some driver that knows about the USB thingy AND about your > Ethernet card. I mean, maybe I just don't understand and the adapter > magically gives you PCMCIA slots which the computer natively sees as > such, but I cannot imagine, technically, how that would work. Does > someone have a URL for such a product that I could check out? > > Ivan.