The full profile list of what can be retrieved from LinkedIn is below. Not expecting you to read it, but you can search for "phone" or "position" to see what you can get. Not everything is implemented in v1.0 due to either a) complexity or b) Terms of Service restrictions:
developer.linkedin.com/documents/profile-fields
As (just) mentioned in your other post, we do concatenate a lot of the data. The reasoning behind this is due to CB/JomSocial, etc being a field based system. From our experience, not many users will create the following fields for user profiles:
Employer
Position
Start Date
End Date
Instead, they'd have "Current Job" which would work well with the summary fields we create. However, for searching purposes, that causes other problems, and something we'll be evaluating.
With v1.0 though, the field list select box was already getting cumbersome (much more data available than Facebook), so that's something we need to figure out how to implement better.. easier selection of available fields for import while possibly also making the raw value vs a 'pretty' representation available for import.
Fun stuff!
Hope that helps,
Alex