This wasn't some simple privilege escalation coming out of a buffer overflow in the web browser. Apple signs the shit out of every binary on the phone. The kernel won't execute a binary in userland unless it's signed; the firmware loader won't execute the kernel unless it's signed; the low-level bootloader won't execute the firmware loader unless it's signed. The iPhone 3G is a paragon of embedded device security, at least by way of making sure unapproved code doesn't run on the device, and it's a testament to just how amazing the iPhone Dev Team guys are that they actually found a way to (a) defeat the whole chain of trust in the iPhone firmware in order to jailbreak it. This by the way doesn't even take into account their real genius, the hack into the baseband firmware for the S-Gold radio device, which executes code in its own universe, completely separate from the S5L application processor. In short, this hack wasn't some bunch of script kiddies having a sleepover and cracking the copy protection on Arkanoid 2 for the C64. This was a brilliant circumvention of some of the tightest security ever found on a PDA or mobile phone.

This is an excellent case study in why DRM is retarded. As you say, this is some of the tightest security ever found. Yet, it has been broken by some very smart people. Such is the fate of any DRM that is sufficiently widespread that smart people care to go after it. You can be as clever as you like with your DRM scheme, you are going to find someone as clever as you will likely break it.

'...CERN officials are now instructed, with respect to the L.H.C.’s world-destroying potential, “not to say that the probability is very small but that the probability is zero.”'

The average amount of viewing time for the children was 40.2 minutes per day. At 3 months of age children watched less than an hour per day and by 24 months they watched more than 1.5 hours per day. "Approximately half of the viewing was of shows that parents reported to be in the children's educational category," the authors note. "The remaining half was approximately equally split among children's non-educational content, baby DVDs/videos and grown-up television."

...as many as one in five youngsters under 2 even have a television placed in their bedrooms. More than half (54 percent) of these tiny tots could turn on the TV themselves...

...Most often, parents interviewed in the study said they put a TV set in their kid's room because it freed up other TVs in the house for parental use...

Unlike typical supernovas that reach a peak brightness in days to a few weeks and then dim into obscurity a few months later, SN2006gy took 70 days to reach full brightness and stayed brighter than any previously observed supernova for more than three months. Nearly eight months later, it still is as bright as a typical supernova at its peak, outshining its host galaxy 240 million light years away.

Eta Carinae could blow up sooner than we thought, Dr. Smith said, noting that it could be tomorrow, it could be thousands of years from now. Astronomers have no way of telling.
Even if it did blow as the new supernova did last fall, at a distance of around 7,500 light years, Eta Carinae would be unlikely to cause any serious harm to Earth, astronomers said. The explosion would be visible in the daylight and at night you would be able to read a book by its light.