Android: If the default Android dialer feels a bit too bare for you, dialler replacement Dialer One should make you happy, easing phone calls with speed dial features, a smart T9 search feature and call log filtering.
The stock dialler isn't bad, per se, but if you're used to HTC Sense's dialler (or, for that matter, a dialler from a different OS) you may be missing some of your favourite features. Dialer One brings some nice time-saving tricks to your phone's dialler, so you don't have to keep rooting around your Contacts or Call Log page. For example, when you start typing on the dialler, it will automatically narrow down choices from your contacts and recently called numbers. You can either start typing a number or their name (using the letters that correspond to each number), and then just tap the desired contact when it pops up. It's also got a speed dial feature, for assigning contacts to one number on the dialler, and more advanced call log filters, so you can narrow down recent calls by incoming, outgoing or missed. You can also change its appearance to fit your tastes.
Dialer One is a free download for Android devices running 2.0 and higher.
Dialer One [Android Market]