The Tour of Mont Blanc is one of our top 10 hikes in the world.
Marc Sebastian Pelzer has done 3 TMBs since 2003, in 2007 remembering to bring his wife Romana.
Marc posted an excellent trip report of their 2007 adventure:
Approximately 175 kilometers and 12,000 vertical meters ascent and descent around the mountain massif of Mont Blanc in the triangle of France, Italy & Switzerland. This is Europe’s most beautiful trekking tour. The “Tour Du Mont Blanc”. …
… Each stage was different than the previous one and had its own unique character. Each stage was a sporting challenge. On average, we went about 15 kilometers per day and completed to 1000 meters of altitude ascent and descent. …
trip report – original German
trip report – Google translated to English
besthike.com 
Great pictures of a great tour. I’ve linked to your blog and refered to one of your pictures from my mountain blog. A colleague had a go at the walk this year and enjoyed it. She’s written her experience up on my site http://blogs.liverpoolecho.co.uk/aintnomountainhighenough/
I’m inspired enough by your account and Laura’s t sign up for it myself now!
Thanks Richard. I gave the trip report a shout out on our blog:
https://besthike.wordpress.com/2009/10/07/ultra-tour-trail-du-mont-blanc-2009/
I did the High Route this summer. It includes some same sections as the TMB. Gorgeous.