I've been following this topic in my Astronomy mag. About 2 or three years ago, some astronomers found some slightly larger then Pluto sized rocks out in the Kuniper Belt, the "bubble" of debris and rock that surrounds our solar system. Two of them were named Xena and Gwen (I think) after, you guessed it, Xena the T.V. show.
Anyway, because these rocks are all about the same size as Pluto, therein started a huge debate as to whether or not these rocks are planets. Some said no because they are out in the Kuniper Belt, others said yes because they were the size of Pluto.
So, that leads to today's decision, which I frankly think, is dumb. Keep Pluto a planet and don't cop out by calling it a "dwarf planet." Keep the solar system at 9.
I think that's my new motto: "Save the Sol 9."
I realize this post may be a bit boring, hell, I feel asleep while typing it, but astronomy is my other hobby and I have been hoping that space exploration in general would be taking off a bit more at this point. But instead, astronomers are still arguing about how many planets there are in this system. Bleah!