Microsoft SkyDrive team today announced that they are adding two new features to this web service. First, SkyDrive will now feature Recycle bin similar to our desktop Windows. You can restore files to their respective folders anytime from the Recycle bin. Here is the policy around Recycle bin feature of SkyDrive,
Items in the recycle bin do not count against your SkyDrive storage limit. We save all items you delete in the recycle bin for at least 3 days. If the content in your recycle bin gets large enough to exceed 10% of your storage limit (which will be pretty rare), we’ll start to delete the oldest content (after it’s been there 3 days), and will permanently remove items from the recycle bin after they have been there for 30 days (and not restored).
Another important feature added is the support for survey forms in Excel Web App. It was one of the most requested feature of Excel Web App and often cited when compared with Google Docs. Now, you can create forms using Excel Web App and share it with the public.
Read more on it here.