Google updated their local OneBox, by adding a static map and links where you can find more information about each business. This is the old OneBox:
... and this is the new one:
Google realized that not many people use Google Maps to find local businesses. Most people search on google.com, but standard web search results aren't suitable for these kinds of queries, because not every site is connected with a local business and because web pages don't contain structured data (address, company profile etc.)
Google also updated the Maps OneBox and started to include the addresses of local businesses in web search results.
Of course, most of these changes are available only for the US and a small list of other countries: Canada, UK, France, Germany, Italy, Spain.