As mentioned recently in more than one place, we are hard at work on functionality for browsing storage devices.
Roon uses the same UI engine on all platforms, and supports a variety of platforms and devices for Core and storage, respectively. Building a native browser in Roon’s interface that lets you browse every conceivable combination – your Linux storage from your iPhone, or your OSX storage from your Android phone – is a big project, but it’s one we’re committed to getting right.
That doesn’t mean everything else is on hold – we have a lot of changes and new functionality we want to release over the next few months (and years) and that work is in progress. This isn’t about us “knowing better” – it’s the simple reality of making big changes to a complex product with a team of our size.
We try to be as open as we can be about our roadmap, and every change requested on this community is considered and weighed against the amount of work involved, the goals of the product, and the number of times the change has been requested. Sorting this category by views you’ll see we’ve shipped 9 of the 10 most popular feature requests, all since Roon launched 16 months ago. We’re quite proud of that record, even as we continue to work down the list.
@Keith_Wong – I’d be interested to hear more about your “painstakingly curated folder structure”, so we can make sure the new functionality meets your needs, even if there’s still a good deal of work to do before the feature goes live. Appreciate the feedback 
Edit (March 2017): As of Roon 1.3 we have introduced some new ways of interacting with files, as detailed in my post below. While Roon will always emphasize artists and albums over files and folders, the new functionality has made things less opaque, and we hope it helps people connect to their music in new ways that don’t involve remembering which folder you saved a file to 