There is a group clearing in Sept, so I guess the interviews would start around that time. I hear there is another group that has been through some of the interview stages...
In this, patience will be your greatest asset. In our case, we had our Medicals in late December 2012, but went to SA in May 2013. In between that time we sent emails, made calls, visited the offices...to no avail. Then surprised us in late April asking us to go to Pride Centre dressed officialy. To add on to that, we were informed that we were leaving the following morning and so had to be at the airport by 5 am. No time for farewell parties...hurried packing...
As you wait for that communication, get something to occupy you, play some video games to improve your hand-eye cordination (they really helped me in the psychomotor test considering I hadn't used a joystick before
), practise some basic Math, Phyc...the usual stuff and build speed.
All the best. If I can be of any help, just PM me.