I've just uploaded the v1.0.5 release of SP Term Cloud.
It fixes a fairly significant issue that causes the web part term indexing to fail in certain scenarios.
Specifically indexing would have stopped when values in the TaxonomyHiddenList CatchAllData column contain the text UNVALIDATED.
This may occur when documents with new Enterprise Keywords are uploaded to a site or possibly if the Managed Metadata service becomes unavailable during uploads.
The web part term collection now handles this scenario.
If you use SharePoint 2010 Managed Metadata or Enterprise Keywords try it out and let me know what you think...