Gmail and Hotmail are two different email services.
On Gmail you can make a little face that you prefer. Gmail supports a number of emoticons which are used to express different feelings.
No, you cannot recover Gmail using Facebook. You have to recover it via Gmail only. Both of these are different organisations.
You can log into your Gmail account by first visiting the official Gmail website. Your user name and password are then entered into the box which allows access to the site.
You can make your Gmail background different by applying themes. These themes have interesting backgrounds in it. You can also upload a manual background.
Yes, it is possible to send it. It is because Gmail is able to send data to different services too. Gmail can send an email to Live too.
No you cannot do like that ever. You need to have a Gmail account in order to sign in into that. Yahoo accounts signs you into yahoo mail.
I think you can use any valid email you like.
The themes are included inside the Gmail website. They are for making the webpage more interesting. A person can select the theme which interests him/her.
No two people can have the same gmail address. If there are 2 accounts, there will be 2 different email ID's. The Facebook account will be different in that case too.
No ofcourse not gmail is completely different than PayPal Google has their own payment system - Google Checkout
never mind i have a different question how do you make igoogle you home page.com