If you are serious about wanting to register this as a wish for an update, Apple feedback would be the place to do it: http://www.apple.com/feedback/iphone.htmlThat's strange that no one ever report this? Not sure if this is a bug or something that they left out intentionly. How are we going to report this any way?
Only helps if you jailbreak.I´ve a very good new product on my iphone - called iLog.
I can delete single calls and manage them in a comfortable simple way.