For example, the Snap mobile forum index shows the VDSL Performance & Tuning topic rendered as follows:

The page source shows the following - note the double-escaped ampersand character:
<a href="/Forums/90/Topic/105744">VDSL Performance &amp; Tuning</a>
On the full website, the ampersand is escaped correctly in the hyperlink.
<a href="forums.asp?forumid=90&topicid=105744" title="VDSL Performance & Tuning">VDSL Performance & Tuning</a>
There's another couple of topics in the UFB forum index, where the same thing is happening to greater than, and quote symbols:

This only appears to happen in hyperlinks, and seems to be browser independent. I've checked the following:
Android 2.36, on 3G (Vodafone), or WiFi
Firefox 19
Internet Explorer 9
For testing the last two, I set an android-style user agent to prevent the mobile website redirecting to the full one.
Does anyone else see this happening?