When you pick up your new Windows Phone 8 smartphone, don't forget to download Microsoft's SkyDrive client. The file manger of your cloud account has been polished up to v3.0 for Windows Phone 8 handsets, allowing files, photos, and videos to be uploaded and downloaded to the cloud.
The updated version (which is currently only available for Windows Phone 8, WP7.x users are still on version 2.2) adds the following: