nicolas cellier wrote:
> Yes but the spirit is also to build a VM able to hide some low level 
> details like memory allocation...

As well as the details of method lookup etc.

> Smalltalk programmers are released from these release problems...
> Free to concentrate on higher level problems.
> 
> Wouldn't this apply to threads too?

Absolutely. What we need is a *model* of concurrency (just like we have 
a *model* for managing memory a *model* for sending messages, a *model* 
for linked stack frames) and then have the VM implement that model of 
concurrency as effectively as possible.

Cheers,
   - Andreas