## Note: this is my personal todo and ideas list (alexh@)
+* add a non-persistent unionfs VFS
+ - while this does not fully replace unionfs, it would deal with a few of the situations where unionfs is useful
+ - additionally the complexity is much lower, since everything can be kept in memory
+
+* bring the samba3 hammer shadow copy foo to maturity
+
* add a communication channel mechanism to dm
- essentially a way to send messages and receive responses to dm target instances