As silly/awesome as you think the name “Wii” is, at least it has a meaning. “We”. Togetherness. But what about the “DSi”? What does that mean?
You could say it’s got something to do with having two cameras, but then, according to Nintendo of America’s David Young, it means your DS is “individual”. Here he is explaining in detail:
https://lastchance.cc/nintendo-explains-what-the-i-in-dsi-means-5158140%3C/a%3E%3C/p%3E
He could have said “because the only thing different about this and tens of millions of other DS handhelds are two small cameras and a higher price tag”, but then, he’d be pretty sucky at his job.