I did the Thursday "illicit" 2.0 firmware. Ended up with some crashing problems to where my phone wouldn't boot. Went into restore mode today (Friday) and iTunes successfully downloaded and installed firmware. When I look at the "About" page, it shows the "5A347" build that was the same between the Thursday and Friday. Any well to tell if its the Friday official iTunes 2.0 firmware or the illicit 2.0 firmware?