If you go to Google Maps right now, you’ll still see the current incarnation of Google’s map. This is what the map of my home town looks like. The new preview version is there, you just can’t see it.
The key to unlocking the new preview is held in a cookie called
NID. If you change the cookie’s value from one impenetrable string of characters to another, equally impenetrable string of characters, the preview will automagically get unlocked. There’s several ways to modify a cookie; as I use Chrome on a daily basis I used the Edit This Cookie extension, but there’s other ways to do this depending on your browser of choice. Once you’ve found the
NID cookie, change its value to …
… and reload the page. Hey presto. Welcome to the new Google Maps.
One final word of warning; this is a hack. It’s likely to change or go away at any time. If you’re a Chrome user, it also seems to wreak havoc with Chrome’s omnibox searches as well. Your mileage, as they say, may vary.