Nope, it must be "Changes in the Velocity Structure of the Greenland Ice Sheet" Science, 17 February 2006:
Using satellite radar interferometry observations of Greenland, we detected widespread glacier acceleration below 66° north between 1996 and 2000, which rapidly expanded to 70° north in 2005. Accelerated ice discharge in the west and particularly in the east doubled the ice sheet mass deficit in the last decade from 90 to 220 cubic kilometers per year. As more glaciers accelerate farther north, the contribution of Greenland to sea-level rise will continue to increase.
Which is similar to "Rapid and synchronous ice-dynamic changes in East Greenland" by Adrian Luckman et al in the less visible GRL, though New Scientist found it, as did the BBC.
90 to 220 km^3/y is an increase of about 0.4 mm/y in global sea level according to a quick calc (and I'm sure the arithmetic fiends will be quick to jump on me if I'm wrong...). This is 20% of the current 2 mm/y obs (or 13% of the 3 mm/y obs, if you take the more recent satellite obs). Or if you think it *caused* the increase from 2 to 3, its about half of that... The TAR estimates put Greenland into context (as they were then; oh, and here).
So... what does it all mean? I don't know. I wrote this post to find out... originally it was going to be about Luckman, then I realised there was the Rigot thing too. How confusing. Maybe RC will do it properly :-)