Java Development Tools

Hi

As I understand it most blackberry's support java 2 platform as well as clcd/midp and some blackberry specific APIs.

Questions:

1)Why if BB supports java2 would anyone need to create a midlet on a BB?
2)Does the use of 'Form' on a BB always look so **** or does one need to make use of BB specific APIs?

N.B. As per usual all answers are to be treated as if you're tutoring a first grader:-)

J