For all who want JRiver, consider this. I just did a search on this site for all time and found < 30 threads that mention JRiver. I understand that it's a well established product but only having < 30 mentions on this site really concerns me as to the usability.

Also, JRiver has not kept up with the times as still only does XML over HTTP even though JSON has become the standard over the past 5 years. UPNP can be done but again, is likely XML format and is a very 'chatty' interface.

For those of you who might want Pronto functionality, building a Now Playing interface is rather easy. I built a crude one which I shared the configs with Mike/Matt that uses the Philips HTTP Library and about 350 lines of ProntoScript in 4-6 hours.

The code functions well but the user interface is far from a polished product.