Gphone vs iphone, which is better?

As iPhone is the most talked about smart phone on the planet and it has won millions of
hearts of users by his multi-touch screen and other powerful/beautiful design. Of course,
iPhone has brought so much money for Apple.
On 23rd, Sep 2008 Google released G1 and claimed that they will have a share of the big
market of smart phone.
So, which is better about iPhone and G1? That maybe asked by many people who want to buy a
new phone. Here I will give some of opinion about G1 and iPhone.
I will compare these two phones in three aspects, hardware, software, and their performance
as a media player.