This is the contact editor from the Android sources.
I fixed it to make it work with arbitrary contact sources (like CardDAV-Sync) and added several new features.
Get support and news via Twitter https://twitter.com/dmfs_org
After installing this app you won't see any launcher icon in your app list. It will be started whenever you try to edit or create a contact (and you select "Contact Editor Pro").
This app will not edit or remove contacts from read-only sources like Facebook! This is due to the definition of read-only ;-).
Also, if you see a blank screen when editing contacts that are aggregated with a Facebook contact, try to remove and recreate your Facebook account. Facebook limits access from other apps which breaks the contacts API in a way. For further information see http://techcrunch.com/2011/02/22/google-android-facebook-contacts/
Please keep in mind that your sync adapter may not be able to sync all fields that Contact Editor Pro offers.
Also, this app lets you edit some fields, that many contact apps do not even show (department, role, website labels). This is not a Contact Editor Pro bug.
Note regarding Events:
There is a big problem with events in this editor (better: with Android). The Android SDK documentation states about the database column for the date: 'The event start date as the user entered it.' Unfortunately does every manufacturer have it's own opinion about the format. Some are happy with 'yyyy-mm-dd', my phone uses unix timestamps.
So, before you can edit an event's date you will have to set the device's internal date format. Open the menu and select "settings". If your device doesn't recognize one format, try another one. Write me if no format works for you!
Btw: just writing a comment like "Doesn't work on..." won't help neither you nor me to get it running on your device. Please contact me if you have problems.
Please report bugs by sending me a mail stating what happened and what you did before it happened. Often the Market bug reports are not very helpful without additional informations.
* taken contact photos appear twice in media gallery