Since Rio have already successfully licensed their code to a number of (fairly major) companies I don't think their executives are likely to consider open source as an attractive option. Indeed, right or wrong, I believe they will see it as a way of handing their IP to anonymous Asian ODM's (who will *not* respect the open source license) while simultaneously cutting off their NRE and license revenue from larger customers (who will not be at all happy that something they paid for is now "free" to their competitors).

That said, I now work for one of those customers and I'd *love* to get my hands on an open source empeg codebase - I figure it would save me about £500,000

Rob