Take a look at this video from Nick Barber at IDG News service. When you listen to Nicholas Negroponte talk about the XO-3 usage, do you notice anything odd?
How about this telling quote from Negroponte, with emphasis added:
"At CES  we will show a tablet that can be and will be used for children in the developed world that will allow us to start testing many of the things that combine, if you will, a laptop, an iPad, and a Kindle, and sort of take those and put them into one device."
Now match that up with the press release quote from Weili Dai, Marvell's Co-founder and Vice President, with emphasis added:
"Marvell has made a long-term commitment to improving education and inspiring a revolution in the application of technology in the classroom. [...] Education is the most pressing social and economic issue facing America."
Having read the tea leaves in OLPC pronouncements for over four years now, I say this means we'll see Marvel releasing an XO-3 branded Moby tablet in the US marketplace (and on Amazon.com), where they can ship real volume without waiting for Negroponte to make national-level sales deals.
As mavrothal says, look at the bright sight of Marvell Moby (XO-3). You will not need a G1G1 or 1000 units to get a XO-3/Moby :-)