Why do you need internet on a PDA?

Hi, habratovarishchi!

Recently, I am thinking about making a web service for PDAs. But I myself am not a PDA user 8)

I wonder why pda users use mobile internet.
')
After interviewing friends and acquaintances, the following happened:

- IM client;
- Spurs for uni;
- Yandex.probki;
- soap.

Something sparse ... What do you think?

PS: It is very interesting if you read blogs from the PDA ...