Being a Chinese (i won't say where i'm from, but suffice it to say i'm not from the mainland), i would say unite back with China. It will eventually happen, because they ARE chinese (despite what you want to call yourself jackc20_00).
Every industrialized nation needs certain metropolitan cities to help jumpstart and spread economic progress... kinda like a port where the rest of the world deals with. For example, US has New York (and a lot more i know), France has Paris, Britan has London, Japan has Tokyo, Canada has Toronto, etc, etc. China already has Hong Kong, but being a nation that's quite a bit behind the rest of the industrialized world, they need more, and Taiwan can be one of those cities (province, Taipei would be the city).
And don't think China is trying to leech and rob Hong Kong (and Taipei if they unify). They're not dumb, they know that Communism doesn't work, and they know that capitalism is the future. They're just not as stupid as the Russians. Most of the western world still believes that Hong Kong was a victim and was forced back to China. They may not have had a choice, but most of Hong Kong wanted to return to China. My entire family celebrated the day it happened, and so did all my other Chinese friends, Hong Kong or not.
The protests that did occur in Hong Kong were VERY small if you'd seen the footage, and they weren't protesting the handover to China, they were protesting in hopes that China would keep their word and allow Hong Kong economic freedom and continued rights they had under the colony (HK was never a democracy... Britian always ruled it without the Chinese voice, it was only in 1992 that they allowed HK to become a democracy, 5 yrs before the handover), which they have. All the western world thought that there would be a huge exodus of Hong Kong businesses, but VERY few left.
So yeah, i believe that Taiwan should and will return to China. It's not a matter of IF, but WHEN. When? In about 10 years i bet, and at most 20. Taiwan is just watching to see if China has kept their word and allowed HK to continue being HK.
As for believing that Communism will continue much longer in China... bah. I think most people in China, including the Central Committee and Politburo, know it's coming to an end. China is just aware enough to know it won't happen overnight. There's almost 1.4 billion people in China... if China's government had fallen like Russia, imagine the chaos. I actually admire the fact that the Politburo didn't take the Russian's route and rape China and leave it in disarray, like what the politicians of the Soviets did.