|the stack of phones look identical to the pictures leaked a few months ago|
There's no hardware "home" button since the UI uses the touchscreen for the extra controls needed. Now, it's entirely possible that the receiver keys are capacitive, but this could also mean a redesign in the S40 touch interface.
Also, 501 is the highest model number in the Asha line until now, so this could be its flagship. Tune back in tomorrow for official details on Nokia's new featurephone.