Menlo Park, CA
This is all user reports and nothing validated by Sprint. I have been seeing LTE in San Francisco, and Redwood city, and Mountain View for about 2.5 months now. It's nothing new and I don't find it more coverage than before yet.
I'll wait till Sprint says something like "our SanFran users can now access LTE for unlimited data" or something to that effect before I get excited with my couple Sprint LTE devices.