I have a little understanding of GLONASS receiver and together with GPS, it's more accurate than the phones equipped only with A-GPS.
Here you have a video which compares A-GPS only iPhone 4 with iPhone 4S that has A-GPS+GLONASS. My question is, if I buy an iPhone 4S (as iPhone 5 Maps in India is next to useless), will I be able to see my current location on an offline map if both these receivers are present? (say for example CityMapsToGo)
Nokia is claiming the same with its Lumia 820 and 920, as it is equipped with both GPS and GLONASS receivers.