Nokia has announced it has acquired a US company called Plum Ventures, Inc, a privately held firm with 10 employees based in Boston, Massachusetts.

Plum develops and operates a "cloud-based social media sharing and messaging service for private groups". On its website a user testimonial describes the service as "like Facebook for my family, but more private and intimate".

Plum-powered groups are said to be ideally suited for families, co-workers, neighborhoods, sports, schools, faith and any other existing social group.

Nokia says "Plum will complement Nokia's Social Location services" and that the acquired Plum assets will "become part of Nokia's Services unit".

Plum currently offers an iPhone application which presumably will be discontinued pretty soon.