I have a iPod Touch and use the Safari browser to read emails from my Gmail account at times. The experience has been far from what I would like so far, but that changed with new rollouts from the Gmail Mobile team for iPhone.
One of the most annoying things in Gmail for iPhone was the scrolling toolbar, which has now been replaced by a fixed toolbar at the top of the page. Another interesting change is the scrolling speed which is now faster than earlier and makes it easier to navigate through large emails.
Though these changes have been subtle, I definitely like the new experience and would prefer it over the earlier version any day. Have you visited Gmail on your iPhone or iPod Touch recently? Is the experience better than earlier. Do let me know through your comments.