Now, if you receive a link to Google Maps in the letter or simply indicate the address (currently only American), you can see the map preview right on the page with the letter.
You can simply write the address:
')
The link recognizes any address, and just text addresses - so far only American, but the developers promise to work on it.
The same works in Google Buzz right when writing a message:
A new function can be connected on the
Labs tab in Settings (by the name of Google Maps previews in mail):