Apart from adding support for the iPhone app (which is super cool, btw), I'm curious to know what other changes were made in version 4 of the Mark IV software. The PRC interface software was updated, too. For us geeks out here, what were the specific changes? I'm surprised that I wasn't able to find a changelog on Yamaha's website or anywhere else with Google.
Message
Changelog for Mark IV version 4?
2010-04-14 by sjjenkins