User User name as User Profile name

I can't remember if this field was included from the beginning in APK, but I think the field name was "Name". Anyway, within the field group "Basic Info" I have the two fields "Name" (field_name) and "Location" (field_location) now. In the Mini Panel "All about User" (user_basics) I am displaying these fields.
I want the content of the "field_name" to be the same as the username, which is entered at registration. My Approach to achieve this is described above.
Another solution would be to display the username of the $user object within the panel. Unfortunately I don't know how to include this within the panel.

I hope I made it a bit clearer now and hope you can help me out.

thanks and regards,
Hauke

Yes, I know, that this is just the place for a user to put the real name in. And I know how to delete it.
I want to display the username within the "All about user" panel, but I don't want the user to enter two names. One "Username" and one "Real Name". I only want one(!) field "Name" at registration (by default this is the username of the user module).

I have two aproaches how to achieve this, but none of them work so far.

1) I could load the "username" (from user module) into the panel and display it in the profile. But I don't know how to access "username" from the panel.

2) I could copy the username into the cck field "name" and display this within the panel. But there is the problem, how to copy it on registration and not only after editing the profile for the first time.

I don't know how to explain it more clearly.

cheers,
Hauke

Michelle,
thanks for this piece of code. It helped me to solve my problem.
For those who are having a similar request here a short description of how it managed it.

I used the posted code and combined it with the code, which is needed for a "computed field" to assign values. I am not storing it to the database anymore. The Username is loaded directly from the $user object now. This is the code for the computed field "Name":

$uid = arg(1);
$account = user_load(array('uid' => $uid));
$username = $account->name;

$node_field[0]['value'] = $username;

THanks and regards,
Hauke