The most interesting thing about the new embeds? "This map is built for you. When you view this map on your site, you'll see your saved places on the map. Your site's visitors won't see those saved places – they'll see a map built for them." This only happens if you see your profile icon in the top right corner of the map. You can star locations in an embedded map and they'll be saved to your Google account.
"You can embed a basic map, driving directions, or a local search into your website or blog from the new Google Maps," informs Google.