It appears that you've changed something recently. I use the site in "Mobile/iPhone" Mode. I've used it on my iPhone for over a year and it works well. I've used it this week and it worked correctly, but today, it is "broken." The font size is eirher minuscule or enormous. Pages are not formatting correctly on iPhone. Please see the attached screenshot. You can clearly see that PriusChat text is much too small. I have iPhone 4 (AT&T) running ios 4.3.1. Let me know if you have any questions. I will reply to this post when it appears to be fixed. Thanks!