All the evidence points to Future Guy transmitting his image into his own past. To send it anywhere else wouldn't really be of any use. Nero wasn't a temporal scientist, he was glorified oil rig worker!
Actually all JJ Abrams' movie proved is that mixing 'Red Matter' with a black hole results in the creation of a different quantum reality. If you don't take that into consideration, it undermines the classical rules of time travel obeyed during 39 years of Star Trek. It makes a mockery of Future Guy's motives, the Borg Queen's plan from First Contact, Admiral Janeway's in Endgame, Sisko adopting Bell's ID in Past Tense to restore the 24th Century, the fact that Data's head is 500 years older than the rest of him by the resolution of Time's Arrow or Kirk allowing Edith Keeler to die in CotEoF. Or else there would be no jeopardy in visiting the past, eliminating the drama and the risk of wiping out everything that exists in the future. It does raise this thought: If every villain became aware of this Abrams method of having your cake and eat it, why don't they just go live happily ever by setting up their own alternate reality?
Phew. I think need to go lie down again...