SPMetal not generating correctly on lists with only a Title column

Problem: I have 7 custom lists in my SharePoint 2010 site. I run SPMetal against these lists and only 5 lists as available in LINQ.

Initial Hypothesis: SPMetal is broken followed by alot of frustration which eventually I worked out that a custom list must have additional columns to Show up in SPMetal.

Resolution: Create an optional column if you only have the "Title" column in a list that you wish to use Linq to SharePoint on.