http://www.smartphonemag.com/forum/topic.asp?TOPIC_ID=19118

Q: Is there any usable Linux port for the Toshiba e400? A: Unfortunately, the current generic (not just for the e400!) Toshiba Linux port functionality is far from 100% (see this page), and, taking into account that it hasn't been worked on for a while, it's unlikely from being finished in the future either.