Replacing the launcher with SUDOKU results in a black-screen boot. No other activity, screens do not initialize, console is dormant. Any other titles you want me to test replacing?
Also, we need a DSi-mode FTP server. Using WPA access points is far superior for FTP. Plus, none of the DS-mode FTP homebrew actually work under Sudokuhax. They start, try to init Wifi (likely with DS-mode-only commands), and instantly freeze. If anyone knows of one that doesn't, they should share it. Else, I'll take a look and see what I can do, if no one else jumps on it.