To do that, open NUS downloader, goto "Database > (DSi) System > DS Download Play" and check create decrypted contents (*.app)(dsi common key required). Now click "Start NUS Download!". When the download is done, goto titles\00030005484e4441\256 then rename 00000001.app to .nds and take to microsd. It works on flashcarts with hbmenu. When you use it on a 3DS (or XL) asking to Return to DSi Menu, Touch Yes, and you get taken back to 3DS HOME Menu without showing the When in Sleep Mode list. I wonder if you can do that with devkitPro & PAlib? EDIT: If you want Pictochat on 3DS, download Kanji Sonomama Rakubiki Jiten rom, copy to flashcart, run it, touch the wrench, and touch the DS with face on the right.