Today's question: how to synchronize multiple calendars on Google's iPhone / iPod?
I used to synchronize my calendar with my HTC Diamond. My dear and loving, she does the same with his agenda and his iPhone.
Although we have shared our two agendas, no way, on his iPhone to see mine ... so it is written on the Google site that this experiment is possible (Share Multiple Calendars) 
This procedure must be done from the site http://m.google.fr/sync . Now when I connect myself from the iPhone, I get this error message
Equipement non compatible
Désolé, votre mobile ne prend pas en charge Google Sync
Damned ...
But that's the solution ... a small link at the bottom of the page to change language ... Change in Français (U.S.) and oh magic, we reach the configuration 
Is select the calendars to sync and voila, voila ...
Explanations on the synchronization procedure here: http://www.google.com/mobile/products/sync.html # p = apple
