Newps wrote in news:r66dnfOMiNj6zPTfRVn-
:

It might be. I am in the camp that knows that VFR GPS's, installed or
otherwise, are not legal for IFR for navigating on a direct course. You
are not legal asking for or accepting "cleared direct" when you are /A.
Nor is the controller legal in giving such a clearance.

Cleared direct is certainly legal without a GPS if you are asking for
clearance direct to an intersection and you are on one of the legs...

There was a discussion that I was involved in some time ago (maybe almost a
year ago) that defined how one could even navigate direct to an
intersection off-airway with 2 VORs (or, more complexibly by flipping 1
VOR). Admittedly, since I fly in a flight club that has all IFR-approved
GPS units, I never learned the technique. But there is no legal restriction
in requesting or accepting a clearance that you personally can't handle, so
long as you have the proper equipment to be able perform the navigation.

Is it a bad idea? Maybe. But is it illegal? I don't believe so.