A bunch of friends here in New Zealand have been working on Hoist, which is a new way for developers to focus on building great web apps, rather than re-inventing the wheel every time they start a new project. They offer a Javascript API (and hosting) that can handle things like user login, email notifications and data storage with more features being added quickly.
Perhaps one of the most unique features is the ability to quickly spin up sand-boxed environments for quickly developing new features and then clicking a button to deploy them into prod.
We covered the launch at The Next Web the other day: http://thenextweb.com/dd/2014/02...
They've just gone into open beta, so give it a go for yourself :)
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