Live Mesh uses the internet as a data hub, to allow data such as photos and documents to be accessed anywhere and at any time.
The documents can be scattered among numerous device, including computers, mobile phones and other internet connected devices.
Users of the service could take a picture with their camera phone, and this could then be viewed immediately on their home computer.
Before the latest announcement Live Mesh was only available via invitation, but US users can now sign in to www.mesh.com with a valid Windows Live ID.
Live Mesh was devised by Microsoft software architect, Ray Ozzie, and is part of the company’s strategy to build its internet business without damaging its core software offering.
As well as benefiting consumers, Live Mesh could be used by businesses, allowing colleagues to share and update documents more easily.