The3DS MIGHT get a video recording feature with a later update (according tobSatoru Iwata), not the DSi.
They worldwide update in May will include the eShop and Internet Browser amog other things.
There's no need to make a new thread later on (with the DSi update not actually existing). Simply post about it in the 3DS Talks thread.
It's my job to help the next generation, and set a good example for them. And for that I'll gladly lay down my life.