A Google Groups thread asks if Google has made Google Webmaster Tools iPhone friendly? In other words, did Google make a version of Google Webmaster Tools optimized to render well on an iPhone? The answer is, kind of - yes.
You can go to Google Webmaster Tools, click on Tools and then Gadgets and add the iGoogle gadgets to your iGoogle front page. Once you add that, those reports should be available in an iPhone friendly format on igoogle.com.
I tested it out and here are some screen captures:
Clicking on any of the hyper links takes you into Google Webmaster Tools, but the interface is not optimized for an iPhone.
This leaves open a great opportunity for someone to build an Apple iPhone App, using Google Webmaster Tool's API, so you can interact with the data with greater flexibility on your iPhone.
We hope to make this site more iPhone friendly in the near future. But we are hand picking some pages on our RustyBrick site, specifically rustybrick.com/iphone to have an iPhone optimized version. Right now, we redirect users with an iPhone user agent to a special version of the page, but honestly, I want to use a style sheet and leave the URL the same.
Forum discussion at Google Groups.