On the other hand, traditional Chinese on a <4 inch screen always PITA to read because every fucking single character looks like a black block, for example 龍, it's very hard to see the exact strokes which cause an obstacle for reading. (yeah, like 赢羸蠃嬴 are totally 4 different characters.) Traditional Chinese under 12px is simply un-readable on LCD screens.
The retina display on iPhone4 is good news for traditional Chinese.
On Twitter, 140 Characters mean a lot in Chinese! why? In Chinese, almost every character is a word; In English, every character is just an alphabet, not a word, with minor exceptions of course. Chinese words are square blocks whereas English ones rectangle blocks. They shouldn't be of the same height.
I would argue that Chinese words convey more meaning per cm square. The same square space occupied by 5 rectangle capital alphabets is more than enough to display any Chinese character correctly.
BTW, you don't need to recognize every stroke to be able to identify a Chinese word. You can tell by its pictorial pattern, such as negative spaces.