There are a lot more people with google accounts then the competition. People seem to also trust google more then a random startup.
you know what happened to Google Video right?
Google bought YouTube instead?
Google went to www.giveupandbuyyoutube.com.
A valid point. Most Google products never reach critical mass. But for a device like the iphone you are already using google maps. If its integrated directly into that, the barrier to entry is nothing.
Than. ;)
My bad. I can only assume thats the reason people have been down voting my comment.