Very interesting. Is there a list for discussion of ION specifically?
From the installer message, I not there are some licensing issues.
Nothing major, but troublesome. The APL you use for the Apache Commons
library is incompatible with the GPL you use for the core app. I would
try to remove the dependence on the Apache libraries if possible. If
not, you might need to include some sort of special exception to your
GPL allowing it to be linked to Apache libraries. I'm not sure. It's all
quite messy. :-(