Public sightings of flensed
SlateBox (http://www.slatebox.com/)
SlateBox is using flXHR to allow widgets to load and communicate cross-domain. Read more about SlateBox + flXHR.
Pointserve, Inc. (http://www.pointserve.com/)
Pointserve uses several flensed projects, including CheckPlayer and flXHR, for their web application which they integrate with other third-party web applications of their customers.
HttpExplorer (http://code.google.com/p/httpexplorer/)
HttpExplorer is a script that creates a virtual desktop for users to connect to favorite social media services such as Picasa, Flikr, Amazon, and more. HttpExplorer uses flXHR for some cross-domain Ajax communication.
X-Browser SEO Tool (http://seo.searchandsocial.com/)
X-Browser SEO Tool is a bookmarklet which uses flXHR to dynamically pull in SEO information about any page you happen to be visiting. Great tool, very helpful, and an innovative use of flXHR.
LongURLPlease (http://www.longurlplease.com/)
LongURLPlease is an API that allows you to reverse convert (ie, lengthen) shortened URL's on the fly, to help users on your page know what URL they are about to click on. Example (hint, hover over link): http://tinyurl.com/9e474a
LongURLPlease has integrated flXHR support for their API, which allows you to make the API calls using flXHR as the transport. Read here for more information about LongURLPlease and flXHR.