I'm not from Colorado or Washington state, but the way I have interpreted the situation is; Even though you are not allowed to sell marijuana, anyone of legal age could grow marijuana and anyone growing marijuana can "give away" marijuana to anyone that is of legal age.(correct?).

So even though you can't buy it in stores yet, you are allowed to grow on your own, and if you cannot grow on your own anyone that is growing mj can legally "give away" some of their mj.