OPML files can be used for describing both "Podcasts" and "Radio Streams".
Example of OPML definitions of radio streams:

    http://wiki.slimdevices.com/index.cgi?WikiRadio
    http://opml.radiotime.com

An internet link to an OPML file can ONLY be added under:

    SqueezeNetwork->Favorites->Podcasts.

Example - an OPML file with "Radio Streams" has the title "My Radio Stations".
If this file is added under SqueezeNetwork->Favorites->Podcasts,
the SqueezeBox will display the menu:

    Other Services->Podcasts->My Radio Stations...

A "Podcast" and an "Internet Radio Stream" is by definition two different things,

    A Podcasts is a "recorded" audio program, which you listen to at any time you want.
    An "Radio Stream" is a live radio channel broadcasted on the Internet.

Problem is "Usability / MMI Design":

SqueezeBox/SqueezeNetwork solution only allows placing fixed content of OPML files under the menu Item "Podcasts" in the squeezebox, even though some OPML files may contain Radio Streams.

SOLUTION #1:

Allow Squeezeserver to add "custom" ROOT menues to Squeezebox, based only on OPML/XML sources under:

    SqueezeNetwork->Players->Settings->Menues

SOLUTION #2:

Make it possible for the user to rename "Podcasts" menu item to something more generic - like "My Sources".

SOLUTION #3:

Find a more generic solution to the Favorites section...