Are there plans for a light rail service linking towns in Essex?

According to news reports, there are plans for a DLR style service linking up several parts of Essex.

One of London’s airports gains a new railway station

A couple of weeks ago - and a mere eight months later than planned - a new train station was opened to much local fanfare marking the regeneration of one of London's airports, and as a sad train geek (and occasional aircraft geek), I felt compelled to go and have a look.