This leak is a bit more complicated than previous leaks but Kris has scored again. It involves installing OS 10.2.0.341 dev OS on your device and then flashing 10.2.0.483 over it. It also superimposes your PIN on the screen if that worries you for screenshots. Kris is confirming certain devices are working and others are untested so PROCEED AT YOUR OWN RISK.
Check out the instructions here in Kris’s post on CrackBerry Forums.
PS: I love how he named the download “Superawesomeness”