For anyone interested, I've emailed a few contacts at Toyota and NHTSA. The information I received didn't exactly agree, but it sounds like crash test results from both agencies should be available by the end of August or shortly thereafter, if there are no delays. The IIHS results could even be much sooner.
Probably already reported, but the IIHS results are here- IIHS-HLDI: Toyota Prius Apparently, the Prius is being crash tested by the NHTSA this week and results typcially are released 2-3 weeks later if there are no unusual issues.
