Rob Galbraith has published some write and transfer speeds for the new Lexar 16GB card:
http://www.robgalbraith.com/bins/content_page.asp?cid=7-10044-10297
Considering that Lexar 600 is almost double the speed of the Lexar 300 I've been using for a long time now I have a hard time believing RED won't certify it. It's a friggin' LOT faster than cards we're using reliably now.
And it's pretty cheap. That's the kinda thing that might get me moving from RED Drive shooting. Looks like you could take advantage of all the frame rates and resolution settings with those cards.
The question is, does RED actually recognize a card you put in and allow/not allow it? Or can you put any card in and give it a whirl?