Apple's latest addition to its ecosystem, the iCloud storage service that will provide storage space that can be accessed from Apple products, is not as revolutionary as it seems.

Some third-party cloud storage services such as Dropbox are well-known, but what about SkyDrive?

Windows Live SkyDrive, a rather unknown entity in the world of cloud storage, is a service launched by Microsoft in 2007 as Windows Live Folders. SkyDrive offers users 25 gigabytes of free storage, while each file is limited to 50 megabytes in size.

Microsoft's Windows Phone 7 offers some integration with SkyDrive, although greater integration will be included in the Mango update slated for the fall.

Once Mango is release, Office documents can be synced across devices and accessed from the Office application on Windows Phone 7. Users of the mobile operating system will be able to view their SkyDrive folders and share files using email, text messaging and Facebook.

Windows Phone 7 already has support for picture uploads, as users can choose to have their phone automatically upload photos taken with the built-in camera. Video support will be added with the Mango update.

SkyDrive allows users to upload and share documents, pictures and other files. Computer users who do not have Microsoft Office installed can still view Office documents inside SkyDrive.

In the wake of Apple's unveiling of iCloud, expect Microsoft to introduce and publicize greater SkyDrive integration.

Follow Matthew Rocco on Twitter at @MatthewRocco