Smart Dialer for Windows Phone
Smart Dialer is a homebrew app for for Windows Phone developed by Deadknight , unlike the stock metro dialer this app can give you all the results for the numbers you enter kinda like instant results as you type in the numbers. The app only work on unlocked Mango devices.
The app has been tested on HD2 (7720), Omnia 7 (7720), HD7 (7720) I have run it on the Omnia 7 and it works, there is a bit of lag but it functions as expected. You have 4-5 preset themes that you can pick from the settings pages. You are also presented with the option of toggling the sound and haptic feedback. I dont think this is one of that app that I will have to use everyday but if you are looking for a dialer that will suggest numbers to you as you type them in then this is exactly what this app does.