The forum functionality is great! But there are two things that are a bit problematic.
The forum prevents zooming on the ipad. This is a disturbing trend for websites. It removes the ability to resize the size the text to a level comfortable for those of us with less than stellar vision. Why websites think they know best and turn off zooming is beyond me.
To make matters worse the combination of font and font color provide less than ideal contrast. Combine this with the first point and reading on the ipad becomes an exercise in iStrain. Even on a desktop browser it’s hard to read but at least there it can easily be zoomed.