'Gives extra points to reviews of apps that are compatible with
multiple platforms, to reflect the extra effort involved.  Only new
submissions get extra points (for now).'

@classmethod
def get_extra_platform_points(cls, addon, status):

    if (status in mkt.WEBAPPS_APPROVED_STATUSES):
        return 0
    event = mkt.REVIEWED_WEBAPP_PLATFORM_EXTRA
    platform_bonus = mkt.REVIEWED_SCORES.get(event)
    devices_count = len(addon.device_types)
    if (devices_count < 2):
        return 0
    else:
        return ((devices_count - 1) * platform_bonus)
