Hi Satish,
as I know - this application is unique by its functionality and I know many users using it from Linux. I also know some people who did not used it as it was supporting just Flash. Now with HTML5 it changed.
It could became a quite popular application under Linux there are now real alternatives- A lot of them can record a video but no application can create interactive video as Wink does.
Please think about Linux version. I can be a tester as I am using Linux on regular basis for last 15 years.
Svatopluk