No, it hasn't gone away or gotten smaller. No, no one has figured out how to clean it up.
Yes, it's getting bigger. And yes, there are more than one. Here's an article from November 9, 2009.
Wherever, whenever you can, reduce and/or eliminate the use of plastic. I know it's hard, it's everywhere. But think about this: In Europe they still bottle catsup in glass bottles. How come we don't here in the U. S.? I can tell you why, because we've gotten used to the "convenience" of those squeeze bottles. But how selfish is that?
Let's see...do I want to be able to squeeze my catsup out or do I want to make sure the earth will be habitable for future generations. Hmmmm, tough choise.
I bet if we all protested to the companies that bottle catsup (no to mention all the other companies that put stuff in squeezable containers that were once in recyclable glass) we could eliminate a lot of plastic.