Everyday when I commute on the TRTC, besides day-dreaming or doing-nothing, I read news from my Sony Clie with AvantGo. There are many channels available in AvantGo. My favorites are CNET News.com, Reuters - US Edition and New York Times.
There is also a nice game called Bejeweled that I really enjoy. Currently my highest score is ranked #135 in the all time best high score table in "Timed" category. It's amazing to see that the first rank score is actually more then 100 times of mine.

Rank	Name	Score
1	Rene (Leipzig, D)	10663550
135	Allen Hsu	106190

My Sony Clie NR-70V