Google announced that will be using their official internal URL shortener, g.co, for allowing Google Maps users to send out short links to maps.
Personally, I always hated the really long URLs I had to send to clients and friends to find my office and my home. In fact, I hated it so much, I simply made rustybrick.com/map redirect to the long URL of my office location on Google Maps.
Also, Google did have a Labs product that had short URLs but that went away and is now replaced by an option for all users to use. Here is what it looks like:

It even works on Place pages, here is a link to my company's place page: http://g.co/maps/du4h. Heck, if you have time and like our work, drop us a review. Hate us, no need to leave a review. ;-)
In any event, I am very happy Google added this because there is nothing worse than sending a long URL in an email that gets cut off.
Forum discussion at Google Maps Help.

Comments:
righini
08/24/2011 12:47 pm
finally!
EIM Media
08/24/2011 12:57 pm
Nice.. at last google accepting short URL's
Nyagoslav Zhekov
08/25/2011 11:51 am
A very valuable addition by Google in my opinion. However, there are only about 1.7 million possible combinations as it seems, so I think Google will have to think of some improvement soon...
Andrew Whyman
08/26/2011 01:32 pm
All they have to do is add another digit/letter to the end. They can go up to 604 million possible combinations just by adding a 5th digit/letter, and 2.1 billion with a 6th. It still keeps it stupidly short even despite that. They could also prune un-used URL's too if they wanted.
Zahid
09/17/2012 05:47 am
Looking something like this and helpful. Thanks.