I almost feel like someone at PearlTrees is following my blog. I mentioned the Flash in Flash inheritance problem as a bad thing, and 2 days later... when you click on a Pearl containing Flash content, it loads a thumbnail image with an overlay stating, "Page not available in Pearltrees, click to open in a new tab."
And when it opens in a new tab, any addons, blockers, malware/spyware detection, etc. works as YOU would have it work.
If I could move HTML5 development and delivery to the cloud, then it could be delivered in a blog page via an IFRAME - so applications and functionality could be embedded. But there's the dual edged sword - the IFRAME tag is dangerous. There's no way around it.
I promise to do no harm. Makes me want to put up a caduceus symbol on my blog somewhere.