64-bit client VM

[Aekold Helbrass]

Hi All!

Sorry if this is wrong mailing list to ask that question, but it's the
only one that looks suitable by its description...

README file tells "64-bit client builds are not directly supported". So:
1) What is the reason of this? Does it mean that client vm source code
was not adapted to 64-bit systems or just that Sun/Oracle don't want
to provide technical support for this?
2) How badly unsupported it it? Will it work fine but possibly will
have some bugs, will it work fine but not as efficient as 32-bit
client, or it will hardly work at all?

Thanx!