Google's mobile offerings are meant to match the customized iGoogle page you've set up for yourself. You can make changes either from your computer or right on your handheld.
On the computer:
From Google.com, click on Mobile in the small print below the horizontal line.
Sign-in to see your iGoogle settings.
You can change or rearrange your homepage and the "Add gadgets" link will list features you can set up on your phone.
You can send yourself a link to this page. From the View on Phone page, click Send link to phone and enter your phone number
From your smartphone:
Go to google.com from you handheld and check at the bottom that you're in "Mobile" rather than "Classic" mode.
Sign in to iGoogle.
See your personalized page and, if you want, you can make changes to it.
Toward the bottom of the screen, look for "Edit your page" to add or delete stuff or rearrange the view.