Whoa. Thunderbolt must be extremely upset about having to share the spotlight with USB 3.0 on the new Mac models introduced yesterday, as Thunderbolt Software Update 1.2 (also released yesterday) is now causing boot failures.
The issue was reported by TidBITS publisher Adam Engst this morning, who said that people are reporting "strange boot-related problems" such as kernel panics, lockups at the gray boot screen, "unexpec
