Regardless of the platform, a priority for me would be track level metadata. A whole raft of improvements could then be made on every platform in terms of better handling of particularly classical music, etc., which can't really be done until it's properly there.

In terms of iPad/iPhone apps-

- A bug fix on the iPad for separate works not showing up indented (which makes them all appear as one work, often by a different composer) on the iPad.
- An album browse facility on the iPhone similar to the iPad complete with album art - I find I visually find albums much better from their covers - (the iTunes remote app also has this).
- All of the app icons/buttons, etc optimised for Retina screens.

That's all I can think of right now...

HC: 861v4/ID40/LPS, DSP5000, DSP5000VC, DSP3100, SW1600, HD621, Oppo BDP-105, Sony VPL-HW55ES
2-Channel: TEAC VRDS-7/Trichord Clock 3/PSU, Avondale S100, Harbeth Compact 7ES-3
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