You can use python and apache combo to launch cgi scripts or python scripts from web browser. See: http://www.internettablettalk.com/fo...velopment+n800
I hope that helps. I did not read the whole thread through but that's what I'd do. I guess you can allow executing any file using web server but maybe you don't want the web server overhead. In that case I don't know better solution yet. Maybe use javascript and allow it file access but I don't know if it is allowed to execute files too. Anyway good luck and post solution here if you find one.