For reference, native vBulletin loads much faster and has only 55 or so requests, with no errors.. At the Meehan site there's many tips and tricks on how to improve, and you can run the test yourself as many times as you want, from different locations and also different browsers.
For mobile devices, this page is a disaster. Over 9 seconds load time and over 900kb of data. I think you want to find a slick, slithery mobile style and get automatic mobile style assignment enabled, or get vBulletin's mobile suite. Here's the test results on a i-Phone out of Ottawa:
General Impressions:
The color scheme and the header logo look nice. It's generally a nice impression, but the chatbox and all the text at the top make it look a bit chaotic and muddy. I concur with others, the sidebar needs attention. I would get rid of the top two elements completely, and move the third one below the fold, opting instead for latest posts and latest threads as the top elements in the sidebar.
Overall, nice board.
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