Congratulations to David Hodge and team!
([1] Disclaimer: David is a friend, but I am pretty sure his non-friend users will tell you the same :))
Disclaimer: I work on the Parse team.
Come to Parse Developer Day: http://www.parsedeveloperday.com/
Or perhaps you're concerned about Facebook changing the business of Parse or shutting it down? They went out of their way to disclaim that when they did the MA, so I would worry about your own business long before I worried about Parse being the reason you win or fail.
So far they only launched for NYC and London but they are truly amazing.
They are pretty much the only thing that makes London public transit bearable.
Their mission is: "to save Londoners from London!"
Disclaimer: I know the founders from London quite well.