Visitors: 
Me
Chen Xu
My University
Description about my iPad Application - Daily Travel
Sending AT commands to serial port through HyperTerminal to send, read, and delete messages.
Using AJAX to just change part of my page without reloading a new page. However, but I have used Google App Engine, I found out another way to do it. =D
Some database back-end stuff.
Configuring GSM modem on computer.