I have a mac mini server using Channel D Pure Music into a Dac, have also been looking for a good solution for using iPad as a remote. Sadly this isn't that solution.<br />
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The display is slow, buggy and almost impossible to use as a remote- for instance it has no keyboard function so you can't search music. <br />
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A much better solution is iTeleport- it works on iPad and iPhone and logs straight into the computer so you can control it completely from the iPad. It is reasonably fast and not too buggy- a much better solution.