the empty places are for more games and applications you are going to download or going to get from Nintendo.
Yes, the 3DS has a HOME Menu like that of the Wii.
Yes, there is an electronic store built into the Nintendo 3DS. It will appear on your home menu, and is called the "Nintendo eShop". If it is not there, update your system, and it will be there.
You can download software from the Nintendo eShop. You must have internet access. It is accessible from the 3DS Home Menu.
If you download a 3DS game or DSi Ware (not DLC) from the Nintendo eShop, the game will appear on the home menu for the 3DS XL.
The Nintendo DS is fully backward compatible with Nintendo DS games; however, the Nintendo 3DS does not have Slot 2, as seen on the Nintendo DS and Nintendo DS Lite, so those features will not be supported. Additionally, DSiWare games will be available to download on the Nintendo 3DS after the software update in May 2011.
Through most wifi compatible game. It's usually on the start screen or options menu.
download the the nintendo wii shop
unfortunately, you cannot.
yes on the start up menu
go to menu take picture and smile
go to settings, its in the menu and change it there.
On a Nintendo DS or DSLite, the Pictochat application can be found on the home menu. If you have your system set to boot to the game without going through the main menu, take the game card out before starting the system. On the DSi or DSi XL, the Pictochat application will be on your DSi menu.