When you access the feature, you get a list of callsigns and frequencies for people you can talk to. The first section is frequencies applicable to airspace that you're currently in. The second section is general radio services such as LARS and FIS (in the UK). The third section just lists all nearby airfields, in proximity order, with all their contact frequencies.

This feature will be contained in the forthcoming beta release but in the meantime I'd like to get some feedback on what I have said here, and ideas that might make such a feature even more useful.