I spotted this while visiting Canberra yesterday. Not sure if available nationally. It's no longer listed on the JB-Hifi website as it's presumably clearance stock given the Mark II version is now available (for $1200 or so…)
Cheapest I could find on Static Ice was $550 so I reckon this constitutes a solid bargain. I don't have an OM-D E-M5 myself (I've got the Canon EOS M3) but have friends who do and they love it. It's got built-in image stabilisation, viewfinder, flash, and weather-sealing.
This is for body only, ie you'll need to buy a lens too, but these can be had very cheaply on ebay (particularly the non-weather sealed lenses)
Here's a link to a review: http://www.dpreview.com/reviews/olympusem5
How many were there?