Registering at LonelyID is very easy. You can do it directly from your mobile using LonelyID Mobile:

Download and install LonelyID Mobile on your iPhone from iTunes or the App Store.

Once installation is complete, open the LonelyID Mobile app on your mobile. In the small form that appears, enter your desired identifier name and your current email address and tap the Done button.

It is very important that you properly verify your email address since it will be used to authenticate ownership of your email address and help you if your mobile is lost or stolen. VERY EASY.