Wait, two real time easy JS database solutions in one week, both with no security!

http://www.firebase.com/

(From the FAQ: "right now all data in Firebase is publicly accessible")

Meteor and Firebase both sound cool... but being able to control access to data is very important!

Edit: I should add that I've been waiting for something like Firebase to come along. I just worry about when it will be truly usable with the needed security.
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