There are no age requirements to have a Twitter account or use a Twitter account.
No, you can get the Twitter app on your iPhone for free.
There is no Twitter account for this person.
If you have a Facebook account, you can register via that account. That's how I did it!
There are no age requirements to have a Twitter account.
Twitte does not cost any money to use. There is no advertising on the site for third party companies.
Twitter doesn't ask your date of Birth or Gender but still no, according to Twitter's Terms of Service (TOS), you MUST be 13 years or older, to create, build, use, and access your own Twitter account.
David Beckham does not use Twitter.
You don't need twitter but it is better to make a twitter account just before your skype account so that you can use the same name
You can use TwitPic (see related link) and sign in with your twitter account.
Once you create an account on twitter.com you can either publish your statuses (tweets) from the main twitter website or you can use many 3rd party applications to do that. You can also tweet from your cellphone through the regular browser or through twitter mobile applications.
He has a Twitter account but he doesn't use it very often. See the related link below for his account.