I got into ACRX at the beginning of the month, and it's been a fun ride. I think it still has room to run.
Longer down the road, I wonder about dealing with the DEA, since a narcotic is involved. I've heard the DEA can be a total drag...really slow about assigning a drug scheduling status and totally uncaring about a company's need to get things moving. But that's a ways down the road, and I've heard people say that it won't be a problem in this case.