Can I tag contacts (com_contacts)?

From the above discussion: do I guess correctly, that with Custom Properties I can already tag Contacts from Contact Enhanced? As I just bought Contact Enhanced, this combination would be the perfect solution for me.
Greetings, Gabi

You guess correctly. I see it happen my own eyes
The currently published version of CP supports Contact Enhanced. I'm not sure if Douglas has been able to release the slightly modified version of CE that we used for compatibility tests.

Well, I've checked out the beta and just to let you all know, you can now very effectively tag the Contact Enhanced component contacts as well as the normal articles and other components.

It really works well -- my thanks to Andreea for his tireless efforts in getting this super link up and running.

The ability to now tag each and every of the Contact Enhanced contacts with the custom property tags provided through Custom Properties is just truly excellent.

When the current site is live, i'll return here with a screenshot -- it's a super lash-up and works perfectly, thanks so much!

Everyone check out the next release of Custom Properties for more the new features!

Cheers!

Then Does 2.0 version work well with contact enhanced?, the idea is to have CP working together with CE to be the closest to the next example:
www.aipti.org/eng/registered_members/

Or if you have a better idea using CP for a solution it will be welcome

We just tested CP 2.2 against Contact Enhanced ver 2.5.5 (thanks to Douglas for his precious cooperation).
We can confirm they work together well:

ver: com_contactenhanced_1.7.2__20111004_1054.zip
ver: pkg_contactenhanced_2.5.5__FULL_VERSION__20120618_2235.zip
assign tags: yes
search : yes
image preview: yes
plugin works: yes*
support archived state: yes

*Process content plugins = Yes in contact advanced parameters + some text in $misc o $sidebar

I believe that the functionalities of the site you are refering to are achievable with CP + CE (and I dare say you'll get prettier results list too)