It is available on extras-devel the very first version of a "contacts" application written in Qt using Qt Mobility. The package's name is "mycontacts"

It is very far from being complete but I decided to publish to gather suggestions/comments on it.

Some of the current features:
- Skinnable user interface using style sheets. (I still have to create some screenshots and instructions)
- Auto rotate, portrait and landscape modes.
- virtual keyboard on portrait mode (it is not a qwert layout... I couldn't fit enough buttons in a row). It is a simple alphabetical order. Any other ideas?
- call phone number, call phone number using skype(1), send sms(2), send e-mail
- icons for work, home instead of text descriptions
- phone numbers in fonts that you (or at least I) can actually read and with some formatting.
- Field descriptions replaced by icons.
- email view (list only contacts with emails and all the emails for each contact)
- thumbnail view (all the contacts you have avatars for). Probably the most useful feature so far.

Notes:
(1) the application right now does not actually start the skype call but shows the "phone" interface with the contact phone number selected and allows you to select how to place the call.
(2) The "standard" sms program only works on landscape mode. I would like to "replace" it with vertsms (or some other 3rd party application) for when you are on portrait mode.

IMPORTANT:
1. When you start the application for the first time it will take quite some time to load all the information. After the first time the thumbnail list will be cached and will only take long when switching to any of the other views for the first time. This is a critical area to be improved.
2. The dependency to libqtmcontacts does not seem to be working. I can't figure out why. You may need to install libqtmcontacts first using: apt-get install libqtm-contacts