Not to long ago, while in a store I noticed an interesting third-party accessory for the Nintendo 3DS. It was a battery extender, I thought it was interesting so I decided to purchase it.
It was called the Power Play and it was made by Newbie Gaming. Overall I think it works good.
It is an external battery pack that attaches to the 3DS and has a switch that lets you transfer the power to the 3DS' battery, and it works quite well in that respect. It also works as a heavy duty case for the 3DS.
However while it is on the 3DS you cannot access the stylus holder or the game card slot. (that's what you get from a third-party product)
Overall I think it is good and I think that it would be interesting if Nintendo were to make one. Since it works quite well, if Nintendo were to make one I think it would do quite well. What do you think?