Apple responded to antennagate and other hardware issues pretty quickly actually.  2 weeks for Antennagate:<p><a href="http:&#x2F;&#x2F;www.pcworld.com&#x2F;article&#x2F;201297&#x2F;apples_iphone_4_antenna_gate_timeline.html" rel="nofollow">http:&#x2F;&#x2F;www.pcworld.com&#x2F;article&#x2F;201297&#x2F;apples_iphone_4_antenn...</a>