After months – actually, years – of rumours, Google has unveiled its fully-fledged cloud storage service, Google Drive. Described by the company as “a place where you can create, share, collaborate, and keep all of your stuff”, it supports files including videos, photos, Google Docs and PDFs. Files can be accessed from a range of devices and shared with friends, with users getting 5GB of storage for free. 25GB costs $2.49 a month, rising to 1 terabyte of space for $49.99 a month. The service is being seen as a full-throttle assault on popular independent storage service Dropbox, although it will also compete with Microsoft’s SkyDrive, Apple’s iCloud and other services.