Yes, the reward did halve. It was supposed to happen after 6 months or once 600,000+ coins are mined. With so much much more mining of Acoin as we expected going on, the reward did halve rather quickly but then, half of all Acoin that ever will be mined are mined already. The reward halved on January 6th at Block 388800 if you are curious about the exact details.
It's now time to consider how rare this coin really is and how cheap you are willing to sell your Acoin for.
Toward the end of the summer, there will also be Stake added to the coin. We are looking at about 10% annual return on your Acoins.