Multiproject:site OutOfMemory

[Matt Read]

 <http://jira.codehaus.org/browse/MAVEN-1294>
http://jira.codehaus.org/browse/MAVEN-1294
 
Could anyone comment on the above defect or suggest resolutions or
work-arounds? I'm having the same problem as many seem to have reported
(currently with RC3) and it's driving me mad. I'm running multiproject:site
and I've enabled -verbose:gc with a max heap-size of 1024meg and just before
I get the OutOfMemory error GC reports only using 80meg - how can that be?  
 
Thanks,
Matt.