Ok I tested it out on both my iPhone 4 and dh's iPhone 3gs on Wifi and 3g. The pages are loading much faster now.

I did notice that on the iPhone 4, because of the high resolution screen, some of the text (Heading that says pregnancy & birth, breastfeeding..etc for example) looks very pixel-y.
As well as the section at the very bottom about subscribing to Mothering is not sized properly. The "only" is cut off and off set funny. The portion of links above the search bar is also too low set. The search bar is cutting off a portion of the letters in "News, Experts.." Oh and one more thing I noticed: When on one of the "subset" pages (breastfeeding for example) the "shop mothering" button is covering up the link that says "get started". This also happens on the other pages as well.
Hope that helps you all! I

Mothering and MDC and love to help!