If there is any,
1. tw is so tiny, it has run out of resources(human wise),if it keep on building fabs in tw and fill with tier 3,4 eng it will be performing like one of it's DRAM fabs.
2. tsmc can't build advanced fab in mainland china.
3. sansung's austin fab is doing just cool and a threat to tsmc.
None whatsoever! GF may have presence in NY but does not mean thaqt they are a threat to TSMC. So far they have not demonstrate their ability to execute. You can not run fabs globally speading out so many different places. TSMC has a fab in Seattle and it has been a nightmare for them. It's better for foundries to have as few sites as possible for better efficiency.
There is only "one Taiwan, one China" issue. The term, "cross-strait", is akin to a proun (or substitution to that effect) of a shotgun marriage. An independent, democratic,and strong Taiwan will be a blessing to American security and prosperity.
Yankee go home! Yes, that is a first step in the right direction. Not only the state of New York begins to change course from shuffling paper to creating money, i.e., from Wall Street economy or high finance industry to main street economy or high tech industry, but also the NYC under Mayor Bloomberg's leadership begins to press on the creation of Silicon Valley Plus version (a new high-tech engineering campus )in the Brooklyn borough. Yes, Yankee go home. Without industrial might, the US is nothing more than a "paper" tiger.