Fall after last cum dividend date with other ex-dividend stocks is often by around mid-point of dividend if unfranked (ie. 55c fall) and value of grossed up dividend (i.e. 78.57c fall).
This suggests a fall of about 67c.
I can see the shareprice being over $1.60 by 9 July 2010 and falling to about 93c after it goes ex-dividend.