I can't seam to get fuel prices any more.  Any clues?

All you need to do is turn them on, from the Mapping menu. Make sure you're not offline.

Yeah.  Think I managed to get that far!  This is a new issue, and occurs on all of my iOS devices.
The data appears to be totally missing, even when you drill down to airfield information.  For every airfield, it just says "None".

Hmm, I'm not sure what to tell you. The feature is working fine on the latest iOS version.

Can anyone else confirm either way?

It is working for me (in Switzerland, France, Italy).
Unfortunately, some airfields do not have any price, since the price was maybe never referenced. It is maybe the case reported by bsdchapman.

Alexandre
Based at LSGL (Lausanne - La Blécherette, in Switzerland)