Question about Jato and Floating Point.

I have struggled to obtain replies from the Jato 'mailing list'
so I hope that I can pose my questions here.

-Will the Jato Java VM support 64 bit Java in memory?

-Will there be Windows, Mac, Linux downloadable build versions
of Jato?

**-Will Jato have the opion to entirely disable floating point arithmetic overflow
or underflow via arithmetic on float, Float, double, Double types?**