Sorry for digging up a thread, this is a belated but valid response!
The leather loops used for securing the iPad into Oberon's cases are very secure, and the elastic only holds it in from one corner. I actually prefer this method to a slip-in leather case, as it's much easier to insert/remove the iPad.
Your iPad's security aside, these cases are absolutely stunning. I've got the red Chinese dragon variant, and it's the single best case I've ever had for the iPad. For a company whose experience in device cases seems to have begun with the kindle, Oberon have done a stunning job and paid attention to the details.
The leather is thick enough that you can fold it back over itself to get a good angle for typing, and a hidden cord loop will secure the flap in an upright position- letting the case double as a pretty stable stand.
Simply put, Oberon have toppled Vaja from my favorite case spot and will, I imagine, be tough to beat!