Allow for user assistance when contacts seem "not mergeable".

I have a "Foo van de Bar" and a "Foo v.d. Bar" contact (Dutch naming style, with Foo and Bar obviously faked) and they are reported not mergeable, porbably due to this naming issue.

"Not mergeable" is really a mediocre solution to the problem of having different names, there should be some UI allowing me to select which of the conflicting details I want to preserve in the merged contact. For example, show the Edit Contact UI with:

Last Name:
(o) van de Bar
( ) v.d. Bar
( ) custom: [_van de Bar_____]

It should prefer the longer detail when conflicting, because most likely that one contains more information.

If you really want to avoid having complex UI you could ask the user by saying something like:
"Not mergeable: The selected contacts contain conflicting details and Soocial can't decide which too keep. Do you want to __merge_manually__ or __ignore__?"

(with "merge manually" being a link to the edit UI illustrated above).

Anyway. Soocial should help me doing this, I do not want to use pen and paper, copy & paste between text editors or other archaic methods.