Another day, another reason to jailbreak your iPhone if you haven't already. The latest tweak is called PhoneHint. PhoneHint lets you do a quick contact search right inside the iPhone dialer.
Here's how it works. Simply, swipe left to right over the dialer’s number display to select the right contact, then double tap to select the number. I can see this tweak saving me lots of time, especially when I'm rummaging through my Recent Calls list trying to find the right contact. PhoneHint does not add any new icons to your homescreen and can be configured from the Settings app.