FUD Zilla claims NVIDIA's first 28nm mobile GPUs will hit production in December, but the site also heard that 28nm yields are not good.
The aim is for the Maho Bay platform to get its 28nm Nvidia chips and continue the good transition of Optimus graphics. The possible launch timeframe is going to be set by Intel, and we hear it will happen either in March or April of 2012.
The production of mobile chips starts in December at the latest, which means that these chips have been taped out for a while now. However, 28nm is currently not doing as great as some companies would make you think, as the yields are not good.