Yes, I am saying just that. You severely underestimate the difficulty in maintaining a database like this one. For Wikipedia, the articles do not need to be revised every second week. Restaurants, shops, internet cafes with wifi access etc... come and go all the time. Commercial offers like the ones from teleatlas and navteq have the same problem and their databases (e.g. the one for wifi you have on Nokia maps) are severely outdated. What is the use of location based services if the database is full of obsolete links?


Openstreetmap has this problem as well, and the quality of their user drawn maps is also poor. The good quality maps which are sometimes available almost always come from other sources (like publicly available survey data) and even then when you actually go on the spot, you often find out that things have changed. Navteq and teleatlas redo their maps 4 times a year and they have links to the road planning authorities in most countries who inform them of planned changes, aerial photography and have a fleet of gps equipped cars to roam the streets.