Technomancer is a magician who commands technology. If we're true to the roots of the word, it means commanding of the craft or art, and these days - in modern terms, the technology.

I can say with certainty that modern technology is just as good as magic (as told by Arthur C. Clarke in his famous third law.)

The only real difference between technology and the traditional forms of magic is that effects of technology can be easily proven scientifically (at least in most cases - I bet even Randi can't explain all of the BSODs). This doesn't make it any less magical in my view. When people say their favorite apps to do things are full of magic, they mean it.