Yesterday, I added a 1GB Compact Flash card to my Libretto to act as a C: drive. The drive first had to be formatted on the Libretto in order to reserve an area on the drive for hibernation. I got a PCMCIA-to-hard drive adapter out of a 256MB Sandisk flash drive housing. The Sandisk flash drive has a metal case with the physical dimensions and interface of a 2.5" hard drive. If you open the case, inside you find a PCMCIA flash card plugged into a PCMCIA-to-44 pin IDE adapter. Taking the top part of the case off makes it easier to fit the flash drive into the Libretto's drive bay. I copied the files from the 256MB flash card to the 1GB compact flash card with the help of my desktop computer. I hooked up the 256MB compact flash card to my desktop computer as though the flash card were a 2.5" hard drive. Pin 1 of the 44-pin IDE interface is in the upper right corner near the cluster of jumper pins. I put the 1GB compact flash card into a USB compact flash card reader. I booted from my hard drive as normal and simply copied the files over from the 256MB Sandisk drive to the 1GB compact flash card. I found that I had to use a BIOS extender called EZ-BIOS so that the 1GB CF card was visible on my laptop computer. Otherwise, the screen would just be blank on my Libretto after it did a memory test during power on start up. The EZ-BIOS program came on a floppy disk labeled, "MaxBlast," which came with one of my hard drives. One disadvantage of using EZ-BIOS is that the compact flash card becomes unreadable in a desktop compact flash reader unless you remove the EZ-BIOS software, so you have to get all of the operating system and software onto the compact flash card first before you install the EZ-BIOS software. After that, you just plug the 1GB compact flash card into a PCMCIA adapter, then plug the PCMCIA adapter into the PCMCIA-to-44 pin IDE adapter, then plug that into the laptop computer. There are other 2.5" inch hard drive interface to compact flash adapters that are more direct, available from pricewatch.com, but they can be harder to fit into the Libretto in particular.
I now have a portable map of the entire United States on my laptop's flash drive, which I can use with a Tripmate GPS receiver to find my location anywhere in the United States. I can use that in conjunction with the VNC software from
http://www.realvnc.com to display the moving map on my Zaurusu SL-C760. The Libretto 50CT and Zaurusu SL-C760 both have the same screen resolution of 640x480 pixels, so the screen dimensions match perfectly.