Where should I put my webclip icon for my forum?

[the stig]

Few of my forum members asked me if I could make a web clip for my forum. For those who's wondering, what's a webclip icon? well, it's basically an icon on iphone or ipod touch when you save a website.



So, after a few Google search, I found out making the icon is not a hard task, it's rather pretty easy:

http://vjarmy.com/archives/2008/01/h...clip_icons.php

Now, the question is: Where should I put this icon? Should I put this in the root folder on my server or public html folder? anyone here has one for his/her forum that can give me some input?

thanks in advance.