H. 'Tokudama Flavocircinalis'
Another 2008 addition of bagged bare root origin. From Costco. And there's always the waiting game with those to see if the contents of the package match the labeling.
Now that we're into August '08 it has become abundantly clear this is not as labeled. Surprise, surprise, surprise... Don't ask yet what it in fact is, but, if you have any thoughts on that subject, don't be shy and please. Several inquiries on a couple of Hosta discussion forums have not yet resulted in the correct answer.... Some suggestions include Heartsong or a really young Aristocrat.
2009 didn't bring any further insight into its true identity. Perhaps by 2010 it will have matured enough to finally get to the bottom of it.
Hugo's Database shows some more details on this cultivar.