Joost beta client 0.10.3 now allow you to write blog post directly while watching Joost.
There is a new Widget available that allow you to specify your blog URL, User ID and Password to use to post a new entry.
Then simply type the desired subject (like I did here) and type away! All this while watching the desired Joost program in the background.
The picture below show you what the widget look like:

The widget has a serious bug (at least on the Mac) at the moment. If you type more text than can be displayed in the edit text box all type text become an ugly mess. This currently prevent any serious use of the widget… but when it is fixed it will be an interesting idea none the less.
The text that appear below is added be the Joost blog widget and provide information about the program you are watching while blogging:
More Information about the program.
Title : FoodMojo – Energy Drinks
Description : FoodMojo jumps into the world of Energy drinks and tests and rates some of the major players.

We’re looking into the problem with the text box on the Mac. Thanks for the reminder. In the meantime, better to keep your blog posts short