I think Nokia should seriously consider this modification. Oli has posted a tutorial on how to modify the Nokia Lumia 800 to have induction charging capability using PALM Touchstone charger.
Here is a quick look version of how he did it.
And if you really like to know how to take out each component from Nokia Lumia 800,click the link below (about 20 minutes).
This modification really requires skill, patience and voiding your warranty. However, looking at the results, it seems worth it.