Just got my sheevaplug. I'd like to get started by installing some apps (java, tomcat etc) but there's not enough space in flash memory. Do I need to configure the SD card as the root filesystem, as described in this guide http://plugcomputer.org/plugwiki/index.php/SD_Card_As_Root_File_System
or can I just plug in the card and install apps to the card instead of the flash memory. Second question, is the procedure for using a USB stick the same as a SD card? Thanks.