This one has nice yellow edges. Medium size hosta
Could be Twilight.
I'm not real sure about this, but the leaf pattern is like one of my two Satisfaction hosta.
Here is one of them, purchased in May 2010.
The other one is a younger plant which looks like this:
There are many plants it could be, this is just the only one I'm familiar with. Other forum folk will be in later to nail its ID for you.