I'm happy to host one, point to one or even provide a simple InnoSetup bundle for Windows users, if it'd be valuable.

I can describe how I use tablet-encode on Windows (occasionally): I've got Cygwin (with Perl), with mplayer and mencoder downloaded from the link in tablet-encode's README.

It's not click and run, but perhaps someone could try these instructions, come back with some alterations and we can put together something for the less experienced users (if tablet-encode is valuable to them):

1. Install ActivePerlnce installed, open Command Prompt and type perl -V. If it shows lots of output, Perl is installed correctly. If not, you will have to re-run the installer and ensure the Add Perl to the PATH environment variable option is turned on.
2. Install 7zip: needed to unpack MPlayer zips.
3. Download MPlayer for Win32: choose the processor type based on your chipset; probably p4 for Intel, athlon for AMD :-)
4. Create C:\Program Files\tablet-encode directory
5. Unzip MPlayer-...-svn-30075.7z: put it in the directory created above
6. Add C:\Program Files\tablet-encode to PATH.
7. Install tablet-encode: direct link, unpack and put tablet-encode in C:\Program Files\tablet-encode.
8. Create C:\Program Files\tablet-encode.bat: