re: Google Maps obsolete?
Some areas are more highly photographed than others. Likely some are high-priority, and some less-so. REally just depends on what freely available imagery they have access to. So, nt every place will be up-to-the-minute. Same can be said of Google Earth and Nasa WorldWind. They just have a stock set of photos that get priodically updated. Though it may be months or years between updates.