The Glass Kettle Teapot

I was on Core77.com and they posted a design by Norm Architects.  Its called the Glass Kettle Teapot.  It can be placed on top of the stovetop.  It has what they call a "tea egg" and is attached by a silicon string that is built into the cap of the kettle.  When you dont want the tea bag is the water any more you just simply pull it out.  The "tea egg" that is retractable secures the top of the kettle so it doesn't drip or spill.  I love this idea because I love tea and the tea bag could get annoying at times.  Their next design should be a mug or a    travel mug.  That would be great for me because I like tea but not a whole pot worth.