Hi Erel! Thanks for your concern. Maybe this can throw some light: As I am experimenting with my problem, I think this behavior is happening only with links inside flash objects.
In Android 2.3, given a webpage with a flash object inside, if the flash includes a link to a third party webpage and the user clicks on it, the webview invokes the overrideurl as espected.
I am not having the same behavior on an asus Transformer Tablet. (honeycomb 3.x): the webview (I think it is the webview) follows the link without invoking the override function.
I don't know that much about the inner workings of flash / webviews: Maybe the flash client uses an intent or something similar and just starts its own webview, in honeycomb.
Regards,
Enrique