iPhone OS 2.1 fixes "emergency call" security hole

Well, it seems that Apple has been rather prompt at fixing (again) the flaw that allowed someone to access lots of private data on a locked iPhone by double-tapping the Home button while on the "emergency call" screen.
The iPhone OS 2.1 update that has been just released fixes it: now when you double-tap the home button, it simply brings you back to the "Unlock" screen.
More 2.1 goodness as we explore the update.