Netbooks work like other computers, so I would think that hooking the harddrive to the 7in netbook would do the same thing as any other computer. It should see the attached harddrive as another drive in explorer, and you could then drag and drop pictures from the sd chip (which it also sees as just another drive) to the appropriate place on the attached harddrive.
And...you could use the netbook to look over and make adjustments (naming them, etc.) the pictures before you move them over, rather than do it all later when you get home.