You can drag photos and videos from your desktop or folder and drop them into the Stream editor? .
Google+ Navigation in the stream:
Following GMail Keyboard shortcuts and vi commands here it comes:
1. Type j to Page Down the stream
2. Type k to Page Up the stream
Google+ Some formatting hints:
1. Type something between * and you will get it bold
2. Type something between - and you will get it
3. Type something between _ and you will get it italic.
* Bold * = Bold
_ Italics _ = Italics
- Strike through - =