Give a feature to import data from other cloud Storage
This can be helpful for users as it can easily allow them to switch to OneDrive from google drive/dropbox/iCloud.
1.I don't want to download all files and photos first and then sync with OneDrive. It should automatically fetch data if given the url
2.Or linking of different accounts such as dropbox/google drive account with onedrive. It should allow users to easily switch from google drive atleast which is currently most popular service and is not as good as OneDrive.
Edna N. James commented
You can check this Backup service provided by CloudBacko. I use CloudBacko(http://free.cloudbacko.com/?r=1d). CloudBacko is accomplished in combining free cloud storage available from Google Drive, One Drive and Drop box into a single large storage. It supports majorly Windows, Mac, Linux ,etc.
Yes, 1) could be solved with URL fetch ( as requested here: http://onedrive.uservoice.com/forums/262982-onedrive/suggestions/6642190-let-onedrive-fetch-files-for-me )
And 2) is good suggestion as well if you already have a lot of files on some other service.