54, the title, at least in UK (and IIRC in Europe) has no bearing on the field or scope of the invention. I've the vaguest recollection of a case in the UK facing this issue and being judged that the title was not allowed to be used in determining the scope.
If the title could be used for such purposes then you need the title to be as broad as possible to avoid reducing the scope of the patent unnecessarily. Suppose you patent "an improvement to a automobile engine" and it's later seen that the same improvement is good for boat engines, rocket engines maybe, etc.. This would be equivalent to file wrapper estoppel¹.
However, the claims define the invention and the title (again at least in the UK) must only signify the field of the invention. If you improve "linked lists" in your invention then you don't make up a new field you call it that. Simply "Linked Lists" is broad, it could easily be shorthand for "Linked Lists used in non-traditional fields" or "An alternative to linked lists", etc., and so is highly unlikely to limit the patent but still meets the regulatory obligation to provide a relevant title.
If the title could be used for such purposes then you need the title to be as broad as possible to avoid reducing the scope of the patent unnecessarily. Suppose you patent "an improvement to a automobile engine" and it's later seen that the same improvement is good for boat engines, rocket engines maybe, etc.. This would be equivalent to file wrapper estoppel¹.
However, the claims define the invention and the title (again at least in the UK) must only signify the field of the invention. If you improve "linked lists" in your invention then you don't make up a new field you call it that. Simply "Linked Lists" is broad, it could easily be shorthand for "Linked Lists used in non-traditional fields" or "An alternative to linked lists", etc., and so is highly unlikely to limit the patent but still meets the regulatory obligation to provide a relevant title.
There I said it. Titles don't matter. Granted claims matter, in this case the claims in the B2, http://www.google.com/patents?id=Szh4AAAAEBAJ&printsec=c... (which don't look modified but I didn't really check).
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¹ Firefox spellcheck says it's "estoppal" but I think I'm right (for a change ;0)>)