Nice little feature on iPhone Google Maps

I discovered a nice little touch on the iPhone which I hadn't previously been aware of. A friend sent me an email with a link to google maps showing his address. I happened to click on that link in my email on my iPhone, and it intercepted the link to maps.google.com and instead showed me the address in the local version of Google Maps on my iPhone. I thought this was a nice little usability touch which is typical of Apple's attention to detail in this area.