Most BB10 apps submitted are mostly HTML5 apps. These HTML5 apps run within the BB10 embedded browser. Java applets are running in a browser environment. That said, why is BB10 immune from this Java bug ? Even though BB10 apps are sandboxed, what if you are browsing your banking accounts while getting connected to your online banking site ? In this scenario, does it matter if you have access to unshared file systems ??
The only complaint the beta testers had with the phone was the camera wasn't great but the time shift was a cool feature they said.
I dont know why anyone would be short this stock when so many testers had only good things to say about it and had to really think hard to find a flaw. Many said the camera was good too so the one guy could have been overly critical. Never said which if any phone he thought had a great camera.