Yes. There were originally going to be only two installments, but they have now been stretched to three. They are:
The Hobbit: An Unexpected Journey (2012)
The Hobbit: The Desolation of Smaug (set to come out December 2013)
The Hobbit: There and Back Again (in theory coming out sometime in 2014)
no
The expected release date of the Hobbit 2 on iTunes is April 7, 2014.
The movie? It's called The Desolation of Smaug, not Hobbit 2, and comes out December 2013
Yes. The second installment will be called The Hobbit: The Desolation of Smaug.
The Hobbit; The Desolation of Smaug will be released December 2013
The Desolation of Smaug
Sketchy - 2012 The Hobbit An Unexpected Christmas 2-17 was released on: USA: 17 December 2012
The first part The Hobbit: An Unexpected Journey, comes out in Australia's theater's on the 26th December 2012. Part 2, The Hobbit: There and Back Again, comes out a year later on the 26th December 2013.
Trolls
Half in the Bag - 2011 The Hobbit An Unexpected Journey 2-23 was released on: USA: 19 December 2012
A hobbit barrow is referred to as a 'smail.'
The HobbitThe Fellowship of the Ring, Book IThe Fellowship of the Ring, Book IIThe Two Towers, Book IThe Two Towers, Book IIThe Return of the King, Book IThe Return of the King, Book IIThe Silmarillion is another book that Tolkien also set in Middle-earth thousands of years before the first of the Hobbit books, but it is a history of the Elves and does not concern itself with Hobbits (except briefly in its final chapter where it reviews the events of the end of the Third Age from the point of view of the Elves, which differs slightly from the point of view of the Hobbits).