Sorry - I'd delete this if I could. I found that someone else already posted a request for this.
Hi, justed wanted to follow up to let you know that we are working on a way to allow integration of applications with Gliffy Online (this is different than how the Confluence Plugin works. A very high level overivew is here). We're very close on this is the first step of our roadmap to allow Gliffy to be used wherever (and however) it's needed.
As you noticed, there's another thread here on a specific integration with Clearspace, and you can feel free to vote on the issue in our JIRA: http://jira.gliffy.com/browse/GLIFFY-569
You can also check-in periodically on our blog, where any official announcements will be made.
I followed the gliffy link you outlined above, and it sounds like they are no longer considering developing this plugin.
I'd really value a flowchart / simple drawing tool plugin - I know our last wiki had a plugin developed based on JHotDraw for example. Any news on a feature like this ?