Paul George grew two inches over the summer and is now 6'10. http://www.indystar.com/article/20111215/SPORTS04/112150368/Pacers-George-still-growing
Interesting. He's still a SG or a SF strictly. Perry Jones will be able to 3 and 4 with ease. Some 5 when he gains weight.
I think Perry Jones in the NBA might disappoint you. It won't be easy for him. He'll have to work very hard to get stronger, physically tougher and mentally tougher to succeed and it could take a while for him to do well. In all fairness, I doubted Lamarcus Aldridge too (he was called soft at UT by some) but he was a well-known gym rat and played with a bit more of an edge in college than Perry Jones. I was on Jones' bandwagon, but he's disappointed me so far. As the season wears on, he needs to be more assertive and aggressive and become the leader of this team.
Jones is much more skilled (by a country mile) except for 3-point shooting. Unlike Horry, he has the talent to be a star at the next level. How bad he wants it is the question.