I have a request : add a free comment field of 100-200 chars to a turning point.

This comment should be printed on the LOG and also displayed in Flight mode using the alert dialog a few dozen of seconds before the point.

This should be handy when you have to remind things while flying such as calling the military FRQ to request transit in a restricted zone.

That is a really good idea!

There are always some details like frequency changes, backup frequencies, things to remember like changing tank, etc I today have to put into another note app. It would very useful to have a note attached to a waypoint on my route. It could look like the "i" bubble attached to the landing field. Just tap it, and the note pops up.

I had the same request, a phantom type WPT that you could add notes to for level changes, FREDA checks, Call ATC etc...

Hi. I raised a suggestion some time ago for a free format facility that would cater for this but, unfortunately, it seems not yet sufficient support for it to be considered for development. Have a look at the "Pop up comment" thread under suggestions and add your vote if it meets your needs. Understandably, SD will only consider enhancements for which there is a lot of support so no apologies for shamelessly pushing this.... Cheers