First of all, welcome to the forum!
Your dealer upgraded for free?? The S70 is a $1200 remote, if I'm not mistaken. That's some serious customer service!
You would probably find more of the info you need over at the AVS forum. There is a dedicated digital media section where you can read about various solutions available and help you figure out which way you want to go.
[Link: avsforum.com]I think you're at a more basic level, i.e., learning the basics of digital music and figuring out what equipment you want to use, than trying to figure out how to program it into your Nevo remote. Spend a little time over there- read about Sonos, Slim Devices, Apple products, etc.- and you'll be up to speed in no time.