G6 convertible is back on the pontiac website.
http://www.pontiac.com/

http://www.pontiac.com/divisional/launchcenter/index.jsp

Looks like trunk space will be a concern again. Look at how the top folds.

If they just would have made the chrome trim surround the passenger compartment entirely while the top was down. It lleaves an unfinished appearance. :( I'm surprised by the folding top. Everything prior to this indicated the top would fold similarly to the SSR (stacked upright) to help increase trunk space. Oh well. It's still very attractive and worth the compromise (if appropriately priced.)

Here's a shot from NAIAS last year:

I'd rather it not have the chrome strip at all...the coupe doesn't have it, and I think it looks great. Nonetheless it's on my list of possible second cars for when the 'balt is paid off. I don't think such a large top would be able to stow vertically like the SSR's does, unless it folds in three pieces.

how do you put stuff in the trunk when the top is up?

The top is dual-hindged I believe, and opens like a regular trunk when the top is up I'm pretty sure.