Unfortunately our platform product teams do not see the same desire for 64-bit in the embedded markets at this time thus we do not have anything on our POR (yet). This may be a situation where "if we build it they will come" but that is not perceived currently. I personally understand the need but then I am not a customer... ;-)
The best thing to do is to work with your field sales people and make sure your needs are being communicated to out product teams. We are driven by "return on investment" so we need to see the demand to prioitize the capability.
Sorry I cant answer this more favorably right now but you can sure help to get that changed.