The internet.
It's really not.
I believe it is "Twitter", with the capital "T"
No. Twitter can be used on the iPod touch though!
Twitter can and is used by anyone.
this symbol # is used to follow a common topic on twitter
it is used for updating your life to others.
There is no need for it to be used.
http
EVERYWHERE!!!
n00000000
It shouldn't.
Twitter is used to update people.
The Twitter icon is a little blue bird. Presumably they used a bird as they 'tweet'