Today in APIs: Million Dollar Hackathon Returns's Million Dollar hackathon returns Oct.10-12, 2014 at Dreamforce San Francisco. Techcrunch's Disrupt Europe hackathon to be held in London October 18-19. Plus: AWS reopens popup loft for startups, and how iOS 8 could break your mobile app.

Salesforce Announces Its Next Million Dollar Hackathon will hold another hackathon with $1 million in prizes October 10-12 at Dreamforce in San Francisco. The grand prize is $250,000 with dozens of prizes $10,000 or higher. A second round of judging will be held October 14 and the final on October 16. As the company noted, the Salesforce developer community has hit 1.7 million members.

Salesforce hackathon

At the hackathon at Dreamforce,

...developers can pick a new technology to learn, stay up all night with fellow developers, designers, and entrepreneurs and build an app that rocks. will supply food, giveaways, and have technical experts on hand. Plus, members of Salesforce Ventures, which just this month announced the $100 million Salesforce1 Fund, will be on hand to offer feedback and coaching on what it takes to propel an app from idea to startup. And who knows, they may find the next great, big idea.

Registration is free and now open. A website for finding teammates is up. Regular updates will also be posted.

Techcrunch's Disrupt Europe Hackathon in London October 18-19

For the second year running, Techcrunch will jump the pond to hold a version of its Disrupt SF Hackathon, known as Disrupt Europe, in London. As the company commented, it's shaping up to be a lot of fun:

Teams join forces to create a product within 24-hours. During the Hackathon energy drinks flow, TechCrunch writers scribble interview notes, Nerf gun attacks break out and much, much more. Once the hacking ends, every team presents their hack to a panel of expert judges and audience members. Plus, Hackathon winners get the chance to present their product on the Disrupt stage. At past Hackathons, we’ve seen everything from useful services to hilarious products. And, if you’re lucky you might just end up as big as these guys.

Some tickets have already been released; more will be available in batches.

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Be sure to read the next Hacking article: Open Data Center Alliance to Host First Hackathon