Twitter is on the move in Boston. The San Francisco social-media giant has acquired Cambridge-based Crashlytics, an up-and-coming mobile startup that helps app developers track and fix software bugs. The deal has prompted lots of speculation about Twitter’s mobile strategy and future plans.

If nothing else, the company now has a beachhead of engineers in Boston and a well-connected network of app developers around the country.

In other innovation news…

Boston Scientific says it’s cutting up to a thousand jobs this year. The Natick medical device maker is coming off a lackluster year financially and has been trying to diversify its business through acquisitions.

Our startup of the week is DataGravity, a Nashua, New Hampshire firm started by EqualLogic veterans that’s trying to help companies harness “big data” and storage for business analytics. DataGravity has just raised $30 million from West Coast and Boston investors.

And lastly, there’s a new startup accelerator in town. LearnLaunchXis focused on education companies and joins a crowded field in Boston that includes TechStars, MassChallenge, and others. It’s goal is to support the local education cluster and help make Boston the ed-tech capital of the world. You can learn much more at a “Future of Education” conference that’s happening at MIT today and tomorrow.