It looks like Google is on Tokyo time with today's launch of its April Fools' Day fun. Dozens of wild Pokémon have taken up residence on streets, amidst forests and atop mountains throughout Google Maps. To catch 'em all, grab your Poké Ball and the newest version of Google Maps for iPhone or Android. Then tap the search bar, "press start," and begin your quest.
Follow Google Maps on Google+, Facebook or Twitter for hints and tips for the most dedicated trainers. And check out this link for more details.