One of the raps against against CommonSpot (Paperthin's CMS that appears to lead the ColdFusion-based pack) was that it was not object oriented. That is, you couldn't easily disconnect content snippets from a site's overall structure for greater re-use without the cumbersome copy-paste routines associated with lower-end solutions. The new 3.0 version attempts redress through the addition of "custom elements." Unfortunately, these need to be scripted carefully by an administrator, and we'll want to see how the approach fares in real production, but the direction appears worthwhile. BTW, note the Sec. 508 compliance module in the new version. So what's missing in CommonSpot 3.0? Answer: XML anything -- the new version still predated ColdFusion MX...
What's new in CommonSpot 3.0