The organizers of the hackathon at Yale this weekend aren't exactly sure how many students turned out for the sleepless grind. Gauging from the depletion of YHack t-shirts, they put it at about 950. That's about 915 more people than came last year, when a group of students organized a mini-hackathon that one participant described as, “Wasn't great.” With about 150 participants making the haul from Canada, a handful flying in from England, and hundreds more arriving from schools across the US, the hackathon that wrapped up this evening was definitely better than that and adds one more event to the circuit of major college hackathons that includes PennApps, MHacks, HackMIT, and HackRU.