Hi smoothsailing
It may feel a long time for you, however it hasn't been that long!
As you will see from the forum - no news is good news. Everyone is processed in batches, so each group of applications will be different timelines.
I applied in December 2014, I passed assessment day in June 2015, reference checks complete and am waiting on the call for an offer.
You learn to be patient with it - it's a long process as they describe!
Good luck with the next stage