It's now clear.
Although Flash Lite 2 is available since March '06, there are still very few devices which support it.
A lot of developers still work on Flash 1.1, waiting for mass Flash Lite 2.x supported devices released.
So here I am, I'll study Flash Lite 2.x (+ XHTML Basic and CSS) from now, waiting for the same thing ;)
In fact, all is under Adobe's makerting force hands !
I'm waiting for my FL2.0 capable (not enabled) phone, I'll so be able to write my case studies in some weeks.