As this excellent article on the Willamette Valley demonstrates, Google has allowed for some amazing uses of its technology by independent developers.
The information on the Willamette Valley is well worth the read, but the really stunning part of the article is described in the following excerpt from the article:
The initial interactive start-up screen lists all wineries and vineyards in the Oregon Willamette Valley.
Navigate to a winery by clicking on the yellow and red grape icon. Details including winery location, hours of operation, winery URL and directions will appear. If Enobytes reviewed the winery, a link will appear at the top of the details page. Click on this link to get to the review information.
Once you decide where you want to go, you can use the left-hand navigational bar to turn on various layers of mapping information such as roads, turn-by-turn directions, shopping and services, geographic features, 3D buildings, sightseeing, gas, food and lodging, real-time traffic and weather reports among others:
That is just a description of what is there. It really needs to be seen to be appreciated. I look forward to more installments of this wonderful series.