unfortunately, you cannot.
In your photo album, select the star marker for any pictures you want to be displayed on the top screen in the DSi Menu.
What you do is just go in your album and there is a sticker bar and put the star on your favorite pic. Then you go to your dsi menu and walla there it is. I know this because I have a dsi of my own. Enjoy;)
the dsi shop its a box on the main menu
When you are in the Nintendo DSi Menu, Press either L or R to take a picture or Go into Nintendo DSi Camera and tap the button on the touch screen that shows Take Picture.
In the DSi Shop's options menu, select the "Link Club Nintendo Account" option, then enter your Club Nintendo username and password.
It has one built in. you can go to Nintendo dsi sound at the dsi menu and record sounds up to 10 secs
go to your photos and click display
Do a System Update from the Start menu!
Sorry, there is no apps of any kind for the Nintendo Dsi. Maybe you could write to Nintendo to change that, though.
In America: A Nintendo DSi is $140; a DSi XL is $160. In Japan: A Nintendo DSi is ¥15,000; a DSi LL is ¥18,000. In the UK: A Nintendo DSi is £150. In Australia: A Nintendo DSi is $300.
The Nintendo ds is not as bright and has smaller screens. Plus, it doesn't have the shop,the camera,the recording thing, the cool menu, and the power button that sends you right back to the ds menu. The Nintendo dsi has Internet connection. Many people recommend the dsi but if you just want a handheld cool gaming system that doesn't cost alot would get the regular ds.
tap the Nintendo dsi shop icon on the Nintendo Dsi , or Nintendo DSi XL start up screen