Here's an interesting and somewhat troubling thought. All of the democratic states allocate their delegates proportionally and have no winner-take-all contests. The one exception is the territory of Puerto Rico, which evidently has historically allocated all 63 of its delegates to a single candidate. The result is that assuming the Dem race remains very close between now and June, Puerto Rico could end up casting the delegates that put someone over the top.
More detail here -- pretty interesting, and a quick read:
[url]http://www.usnews.com/blogs/barone/2008/2/6/puerto-rican-poll-power.html[/url]