Erm, I'm not wrong at all. Do you not learn anything?why should you be mad? You're wrong after all. The touch would need to be in wifi range in order to download the maps. Otherwise you would need the maps stored locally which would take up gigabytes in storage and wouldn't work with google maps.
I am aware that the iPhone at present uses google maps, but there is no rule that states a turn-by-turn GPS have to use google maps.
Secondly, most GPS's/chartplotters don't use "gigabytes" in storage, nor have they a need to work with Google Maps. The google maps could be used just like it is used now, but there are no need to use such a thing on a turn-by-turn GPS.
You should take a look at proper chartplotters/turn-by-turn GPSs before continueing with your nonsense about what is needed for a chartplotter to work.
I guess the fanboy-seal is harder to break for some than for others.
I guess this says it all, though:
Nor could the info be transferee through GPS as it's too slow.
You really show here how little you know.
The "transfer" CAN'T be "slow", as there IS no transfer going on. Absolutely naught. It's not communication satellites!
The satellites that constitutes the Global Positioning System, GPS, can't transfer anything, but they do transmit time derived from an atomic clock. Hence the need to have as many channels on your GPS (receiver) as possible. It's the time delay that gives you a fix.
"Transfer speed is too slow"