Kogan sells its own branded Android tablets, but plans to sell its own Android phones haven't ever come to fruition. But having already started selling parallel import versions of name brand electronics, the site's move into selling discounted Android phones and iPhones isn't exactly a surprise. Models on offer include the HTC Desire S, Incredible S and Evo 3D, the Samsung Galaxy S II, the Motorola Atrix 4G and, unsurprisingly, the iPhone 4.
As Alex over at Gizmodo points out, the main thing you might want to be careful of if pursuing this model is ensuring the imported phones run on suitable frequencies for your needs; Telstra's 850MHz spectrum might not be supported, for instance. If you want an outright buy, it's definitely cheaper than through a carrier, but careful research (as always) makes sense.