The original intention certainly was to make it a tool for GA pilots. If you remember, about 18 months ago quite a few of the regular GA flight-plan filers got a telephone call asking what we'd want from a tool, what browsers we used, etc. I'd be surprised if you weren't one of the people they called.
I certainly remember telling them at the time that it would be useless for me unless it was usable on the move from a mobile-phone browser. I'm not surprised that got particular requirement didn't make it to the final specs, but it was certainly always intended for use by GA pilots, otherwise they wouldn't have been ringing us asking for our views.
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Yes I remember that but I don't think what they delivered here was in line with that original survey. As I recall what people wanted was a simple web page that they could complete and hit send that would result in a flight plan going into the system with a simple ACK, maybe an SMS or something. What we have with AFPx is a full FBO tool that is beyond the needs of the small aviatior in my humble opinion. I find it useful for airways flight as it gives direct access to IFPS but for VFR it is overly complex.
Just my 2 cents.