What cellphone model do these actresses use?

i have seen many movie stars on the screen(especially ladies) using this cellphone, that looks like a pda.
the screen part can be flipped and turned, to look like a mini laptop wen u wana sms or type. usuali they are encrusted with those shiny pink crystals everywhere!

example would be wad brittny gastineau uses in her reality show ' the gastineau girls' or what the small little actress uses in the movie 'the game plan' (the one who acts as the rock's daughter)

PLEASE tell me!

i love the phone!
but i dont knw wad the model is..
and also tell me roughly how much it costs!

thannnks!

What cellphone model do these actresses use?

actresses, wad