it has been said that they are locked to the job, all of the skills say requires whatever the job is in the req field.

They are basically extensions of classes, however theres like 4 or 5 good skills spread out amongst other jobs, and you wont be able to use them all when you select a job. However, its likely that even with that it will be better than classes are for soloing, i mean, sure cure bloodbath invig etc are useful solo, but are they more useful than what the jobs bring to the table? i guess time will tell