Mustr version 1.0.2 is here, including a patch from Fiferboy that makes sure saved wallpapers can easily be set again later.

Sources/Git: https://github.com/harmattan/mustr
ChangeLog: https://github.com/harmattan/mustr/commits/master
Package: http://thp.io/2012/mustr/mustr_1.0.2_armel.deb
Web: http://thp.io/2012/mustr/

This probably won't end up in Nokia Store, as I'm having problem uploading new .deb packages to the web interface (validation fails).