The Rasboras are doing wonderfully. They are out and about most of the time. Occationally they get a little skiddish and will dash off into hiding, but most if the time they're back out in the open in short order. I'd definately recommend them to anyone looking for a fish for a nano.
Sounds like I might get a chance to try a pair of Pseudomugil Gertrudae as well. From what I understand they should get along great with the Rasboras and are nearly as small. While their colors aren't quite as stunning, they have beautiful fin display that more than makes up for it.