http://www.nbc.com/Heroes/novels/novel_014.shtml

That's the 2nd in a four part series of graphic novels about Wireless, the new hero on Heroes. I think it's a pretty good analogue of what a technomancer's awakening would be like.

If you want to read the entire thing, it's a fair approximation of a Shadowrun distilled down.

Part 1
Part 2
Part 3
Part 4