File copying (photographs), and backup. Exciting, yes? Cleared the 1 Gb card which am using in the D3000. It had been used in the CoolPix point and shoot, there were some photos from that source still on the card. That's part of the copy/backup process. Now, with a freshly cleared card, the camera tells me 58 photographs may be made.
And yes, I am enjoying the ease of access via Sky Interwebz. Why do you ask?