PCFileSync is Android application to wirelessly synchronize file content of pre-defined directory on your windows os based PC  with directory on your phone using CIFS/SMB protocol.

-Using WIFI or mobile network to sync
-Automatic sync
High transfer speed (I reached approx. 15Mb via wifi)
-7 sync modes
-App to SDcard for android 2.2
-Sync subdirectories
-Multiple profiles
-FTP support
-Exclude directories feature
Using JCIFS  client library