Programming applications of the Caps Lock key aside, I think this move would stumble in the Asian market. I used to live in China, am married to a Chinese woman and deal everyday with people in HK, Taiwan and China.
My experience with everyone I met in these places is that they universally do not use the Shift key to capitalise. They will switch on Caps Lock - even for one letter in a sentence. My colleagues, friends and relatives in China all do this.
For example I will sit and watch my wife type. She will quickly tap the Caps Lock key, tap one single letter and then quickly tap Caps Lock again to turn it off. It does not break her typing flow at all, but it frustrates me because it feels inefficient. She has found a way that works for her and feels no need to change. It annoys her if I even mention it :)
So there will be some resistance from the many Chinese people who prefer Caps Lock to Shift.