Simple Audio has confirmed that the new update will enable Twonky support, which should mean that a computer is no longer required to stream from a NAS drive, as well as enabling the digital outputs. Originally due at the end of March, the update has been delayed by "a few weeks". From the website:
"We're in the final stages of QA testing and we expect the new software to be available in the next few weeks. Please bear with us while we make the finishing touches."
For more information, check out the news page: Simple Audio Update News