This originates in the Internet memetic spread of a 2000 animation that cut together scenes from the Japanese video game Zero Wing in which a character says “all your base are belong to us” with various Photoshoppings of the same phrase. [Ed: if you haven't seen this video before, I suggest you watch it before proceeding further.] The odd phrasing (a result of poor translation) seems idiomatic to native English speakers and thus lends itself to being snowcloned. Thus it has spread from the leet enclaves of the web (i.e. Something Awful) to the headlines of posts on Reason.com (all your economic decisions are belong to us) and the Center for Democracy & Technology (all your browsing history are belong to us) relatively quickly.
Because of the phrase’s idiomaticity, X may be singular or plural or otherwise not quite line up with the restrictions normally implied by “all your”. Variations include Trek (as in Star Trek), geolocation, [hard] drives, big data, candy, tax cuts. In 2006, the Tensor found with snowclone.pl that X other than “base” most frequently was blogs, audioscrobbler, snakes, bass, bias, skyscrapers, iraq, athens, and typos. I do not see a feature restriction on X like must-only-have-one-or-two-syllables, which makes it more flexible than other snowclones. In cliche years, it is very young, however, so it remains to be seen whether or how this snowclone will flourish.