Thanks for taking the time to respond to me.

I must first say that I'm not too familiar with the legalities entirely, so I'm regurgitating what I'm being told by others.
However, that aside, linux in general is split in such a way so that they can include modules separately, which are then exempt from the requirements of the GPL, but rockbox is coded in such a way that it would be very difficult to accomplish this, unfortunately.

>This does not seem to be the case. I have looked at some of the Rockbox source code files and they do not specify a specific GPL version number. The Rockbox file "COPYING" states: ...

The license for the Rockbox source actually doesn't include the "any later version" bit, and also specifies that it's GPLv2, so we don't have the freedom to change as we wish.

On top of that, we use GPLv2 code for a lot of our codecs, and a few games, so we'd need them to change too, or drop support for them, which would be highly undesirable.

I don't mean to put pressure on you to release under the older license, but I'm basically asking you if this license decision is possible to revert or if you at least would be able to reconsider this, as otherwise we'll be forced to go back to the most recent GPLv2 version of espeak to use that.