This isn't the first brush Apple's iOS platform has had with apps that exploit security holes to run unsigned code, but according to the developer of InstaStock, this may be the first to get a security researcher booted from its developer program. Charlie Miller shared his discovery with Forbes earlier today, showing off an app which successfully made it through Apple's approval process despite packing the ability to download and run unsigned code. That could allow a malicious app to access user data or activate hardware features remot