Just to sum up the "New Roto Grip" post:

1) Roto Grip Cell, approved December 2007

2) Release date on RG website: January 3, 2008

3) New (and asymmetrical) core -- might be able to get a glimpse by looking at ad closely

4) New cover

Like I said, this is obviously just a duplicate of the information contained within the other post...but this way, people don't have to read through everything.