Here's the screen recorded without other lights on, as it isn't super visible otherwise.

(I tried increasing the screen brightness in the payload/visual demo, but it wouldn't work for some reason.)

What I also tried to show during the talk (but somehow failed), was an earlier video recording. While it doesn't have the nice visuals on the console's screen, it also shows the debug log of the modchip. So I'm attaching it here as well:

It starts with a few reads on the SPI bus to addresses 0 and 0x2ff (SPI boot configuration bytes), then a read to 0x200 (boot header). Then a glitch is inserted (not really shown) after which the console reads the payload binaries at 0x1000 and 0x2000. After that, it shows a few messages saying that it managed to get code execution on the DSi, together with enabling DRAM (and sending a few test bytes to check if it's working), and finally it dumps a few bytes of both boot ROMs.