Safari on Apple iPhone before 2.0 and iPod touch before 2.0 misinterprets a menu button press as user confirmation for visiting a web site with a (1) self-signed or (2) invalid certificate, which makes it easier for remote attackers to spoof web sites.
https://exchange.xforce.ibmcloud.com/vulnerabilities/43734
http://www.vupen.com/english/advisories/2008/2094/references
http://www.securityfocus.com/bid/30186
http://secunia.com/advisories/31074
http://lists.apple.com/archives/security-announce/2008//Jul/msg00001.html