To add a bookmarklet to the iPhone click on the "Add to Google Reader" link below, you will see this page again. Then bookmark the page in your iPhone.
Then you will have to go into your bookmarks
and edit the bookmark,
remove "?" from the bookmark URI.
Now whenever you visit an RSS or ATOM feed in Safari you can open your bookmarks,
and click the "Add to Google Reader" bookmark,
and you will be transported to Google Reader subscription page. :)
Add to Google Reader