With all the speculation going on, I wonder what future keyboard upgrades will do with sound quality---both internal speakers or outputs for external speakers. Last evening, Tech Live (on the Tech TV Network), did a major feature on the enhancements to recorded sound represented by the new SACD and DVD Audio formats. Various artists talked about all of the remixing currently going on of "old" records and CDs to the new formats and how dramatic the improvements are, assuming one has the proper playback equipment. The point---could they possibly create a keyboard where the sound output approximates the new higher-quality CD standards and, further, offers the placement of the various rhythm parts in the sound field representing surround sound, or what one hears at a live concert? Just wondering.