jAA this is why the 77x will have folding wingtips. It will be Cat F for takeoff and landing, but Cat E once the wings are folded. This can cause some problems with enroute ATLNs if they have parallel taxyways etc. But once on the ground the same limits that apply to the 380 will not apply once the tips are folded. This is why there is only a limited number of contact gates for the 380 in DXB for example. And why the 380 has limitations on the parallel taxiway taxiing behind aircraft holding short of the runway when a Cat E aeroplane doesn't.