The Batmobile has arrived in San Francisco for 5-year-old Leukemia patient Miles (AKA Batkid)! As most of you know by now, today Union Square turns into Gotham City so that Miles can save us all.

Support for Miles has exceeded any expectations ever since SFist first reported the Make-A-Wish story. Already, the Bat Kid Photo Project Facebook page has had people from all over the country sending in selfies of support. At least 10,000 people RSVP'd for the "Don't Stop Believin''" flashmob set to happen today, and Burger Bar has received 7,000+ reservation requests from people wanting to eat with Miles.

Read all about SFBatKid's heroic journey throughout Gotham City set to happen today!

UPDATE: Watch Batkid save Gotham City live!