As I understand it, we don't have the same kind of present and immediate 
control over distribution of the vm and the image, as we do with Mac and 
PC. I think with Linux it's more likely you'll download the image and vm 
separately, from different sources. Say you get your vm from apt-get, 
rpm, or yum. And then we release a new image. Maybe people will just see 
everything fail. The Cog vm is a big jump. You use it, and you can't 
readily go back to the interpreter. Jecel is going to look at what vms 
Linux users are using. Are they still 3.x vms? That sort of thing. The 
mechanism for Linux users to get what we make is a little different. But 
since you clearly are in the loop, I don't think any of this kind of 
delay would apply to you. I'd say its more a communications thing than a 
technical challenge.

Chris