This is why Polyphony don't listen...
Proposal and Offer
PDI and its affiliates have the policy not to accept, from third parties, any proposal and/or offer for products and/or services, including, without limitation, ideas for new or improved products, technologies, designs, processes, software, promotions, advertisements and marketing plans, in order to avoid any possible future confusion between such proposal and/or offer from the third parties and products or our own. Therefore, you are requested not to send any information which may contain your ideas, artwork, inventions, developments, suggestions or other works ("Idea").
Despite the foregoing request, if you send your Idea to our attention, then such Idea will be treated upon the understanding that you agreed to the following terms:
PDI has no obligation to treat the Idea as a confidential information.
PDI has no obligation to study, evaluate or adopt the Idea.
Even if PDI happens to adopt any idea identical or similar in whole or in part to the Idea, PDI shall have no responsibility and shall not be liable for any compensation therefor.
Link:
http://www.polyphony.co.jp/site_policy.html