The SD and micro SD form factors are not the most robust or reliable. It would be nice to have a next step up form factor. In some ways, that's the motivation for CF Express Type B (and XQD before it), as popularized in digital photography.
Interesting, I didn't knew about this format. Curious picture selection on the Wikipedia, I didn't knew about this manufacturer until reading the Ars article above.
I'm reminded of XFMEXPRESS, a tech that had some justification to exist as a low profile replaceable and coolable main storage for small devices. But it doesn't look like it went anywhere.