Google Docs now generates thumbnails for all document types and most common files (photos, PDFs, etc). When combined with search by relevance, the thumbnail view makes it easier than ever to find your document(s).
Google Docs has also enhanced its spell-check.
Finally, Google recently rolled out its upload and store any file feature (throwback to the X-Drive, which I also wrote about on this blog) and increased the maximum file-size up to 1 GB.
from practice (redux)