Ok, here's my objective opinion about Maps. I downloaded iOS6 on my iPad2 to test just for this thread. Won't be touching it on my iPhone as reviews made me doubt the quality of Maps.
I live in Osaka, Japan and like Tokyo it is a good test since it's so crammed with stuff. Actually Osaka is much more difficult to get around than Tokyo and Kyoto because the orientation of streets in those places was updated after around the Heian period (grid style). Osaka still retains a lot of the old crooked and random street directions that can really benefit from good GPS.
I thought I'd throw in some info about the Japanese address system since it is a little interesting for people who have never been here
Japanese addresses reflect the primacy of the group in Japan. They proceed from the prefecture to the particular addressee. Japanese cities usually are not laid out in a rectilinear grid, so the address system differs from those familiar to Westerners. This is complicated by the facts that only main streets have names and buildings are numbered chronologically rather than sequentially. Consequently, it is almost impossible for outsiders to find a destination unaided. (The safest way to find a destination is to proceed to the nearest major street using a map, and then ask a local resident to pinpoint the building.)
The lower levels of the address info is not in Apple Maps. You can see that Google Maps has numbered addresses over the buildings. You need these big time in Japan.
Maps appears to be very inconsistent. Most building names aren't visible and it is very difficult to find buildings I know of even in my area. I have to guess at the shape and locations near other major buildings to find what I'm looking for. If I was a tourist I'd be F'd. Google Map's 2D maps had names over all grey shapes representing building names. Yes, I am zoomed in as well. Also the accuracy of the building shapes in Google Maps is very realistic. As you can see shapes in Apple Maps is quite vague. Details like these can help in dense areas where you know the shapes of well known buildings and are using those shapes as search points.
Here is my current location. Tell me you don't see a difference. A pretty but useless map vs. a standard useful map. The shape accuracy in Google is exact. Also notice the railroad to the right? Recognizable on Google Maps but in Apple Maps it looks like some kind of road.
Next, satellite view. Wow talk about piss poor resolution. Looks like views from 2005 or something. Viewing at medium zoom seems to be clear but zooming in close produces atrocious results. Where are these images coming from? Tom Tom?
Not illustrated on the screen shots but when zoomed in street names disappear. Quite inconsistent. They need to be present in all zoom levels.
On further inspection, It seems like the data services that Apple Maps is using is listing places that have provided English names to the directory services. That means if a business doesn't have an English equivalent entry it's not listed. I'm not sure what's going on. Just guessing. The directory service Apple is using doesn't even have most of the Japanese language data. Whereas the directory service Google Maps uses has all Japanese data.
In the last photos look at my area which is an old neighborhood. Apple's database doesn't possess the Japanese data thus all is empty. Except for one shrine, one market and one school nothing is listed. Is this because the area is too old for the directory services Apple is using? Google has all the data including the building addresses (small visible numbers).
EDIT: Just realized Google Maps also has one way street indicated with arrows. There are many in my area. Actually all over Japan. More than any other country.
In summary I wouldn't want to be traveling on vacation or looking for a cafe with my gf relying on Apple Maps.
I can also tell you unequivicablly that if Steve were around heads would be rolling.
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