1) i HAVE REAad in many places that Satoshi owns still around 1 milion of BTC (or even 1,2 milion). Is that a rumour or is it true...?
2) Is the adresses (on blockchain) of these coins known? Can they by tracked? (if he moves them?)
3) Did he move the BTC sometime after his disappearance?
1) There was analysis done on a specific pattern in the nonces in blocks generated by Satoshi. From this the estimate of ~1M coins was made. But it's all on different addresses, so it's impossible to give an exact figure.
2) Yes & yes.
3) The ~1M coins that Satoshi is assumed to have, have not moved since they were first mined.
Wow, I must say the idea of him trickling in bitcoin slowly and getting pass each day without having a job make me very jealous.