I'm working on this little app. It supports betascan drivers. After finishing it i'm going to port betascan drivers to morphos and port up-to-date scanners frontends from SANE. This soft is in early beta form :)

http://brain.umcs.lublin.pl/~rzookol/pics/muiscan4.png
http://brain.umcs.lublin.pl/~rzookol/download/muiscan.lha