Images from AppleInsider
Looks like there is more coming in the way of iPad 2 cases. The images above show what appears to be a rubber cover for the iPad 2. Adding to the larger speaker hole and the space for a camera, this one has another opening that could be for the SD card. The very top portion of the iPad 2 case looks to have yet another slot reserved for what some speculate may be for a Mini Display port.
Not much else is known at this point, but it’s an interesting addition to what we already know.
Read up more on the iPad 2:
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Complete iPhone Jailbreaking Guide 
Complete iPhone Specification Matrix 
The small port on top will most likely be a Mini HDMI out port. Since the iPad is going to have an almost Retina Display. Apple said that the Display will support 1080p.