I've never heard of such a thing and limewire.com seems entirely devoid of any information attempting to explain itself. If it's open source, how can one attempt to charge for a 'pro' version? If I download the source code from the website and help in development, will my work profit somebody else? Where do the funds go, anyway? Is the 'pro' code not gpl licensed? What are these marketing gimmicks about 'better search results' and 'turbo-charged download speeds'? I couldn't find any info anywhere on how such feats are accomplished. Surely it is well known that an experienced eye is trained to view such claims with EXTREME SCEPTICISM until they are explained. In fact, where Limewire once gained my instant trust due to it's mere association with the GPL, I am now as reluctant to use it as I am of any other p2p client. I did eventually give it a try, but the shareware-like popup asking me to purchase a pro version and having a 'later' option in place of 'no' was the last straw. Limewire is off my computer and on my s***list until somebody does some explaining. Any takers? I am a perfectly reasonable and intellegent creature and am fully prepared to stick my foot in my mouth and retract everything I just said if there exists a good explanation for everything. I'll not deny that I'm a bit hotheaded at the moment, however I do believe that I have brought up some questions that simply must be answered, ideally in the FAQ on limewire.com.