2008/12/4 Charles Oliver Nutter <charles.nutter / sun.com>:
> Saji N. Hameed wrote:
>>  Just started learning about Ruby/DL - what are the most significant
>> advantages of FFI over Ruby/DL ?
>
> * FFI works on JRuby and Rubinius as well as MRI and 1.9
> * The API is nicer (imho)

Those are the major user-visible reasons.  There are other reasons,
like the ones Luc mentioned.