Our website provided a free download of Fiwi 2.0.9 for Mac. The actual developer of this Mac application is wordpower software. The application is included in System Tools.
From the developer:
Fiwi is a compact, faceless (it has no interface per se) application to help with moving files and folders via 2 symmetrical Finder windows.
Fiwi is rapidly getting worldwide recognition, here are some links to Fiwi..
If you use spaces: in the "Expose & Spaces" preference pane, in tab "Application Assignements" please add Finder and choose "Every Space" from the pop up menu in tab "Space"
You may want to check out more software for Mac, such as Vicomsoft FTP Client, Jitouch or AntiRSI, which might be similar to Fiwi.