Service Slowly Coming Online
The rental service seems to be slowly coming online now (it is still Tuesday in California, so I guess when they said "today" they weren't lying). Promotional banners have started appearing on the iTunes Store Home page. The user comments trick also works as noted above.
The new user agreement (will pop up the next time you go to buy/rent something) clears up any questions:
- HD content only available on

Tv and has to be downloaded directly to that device.
- You can move a rented movie to only 1 device and once you do, the sending device (presumably your computer) will no longer be able to play the movie. It is safe to assume that you can watch the entire movie on the computer and then transfer it to iPod and iPhone and watch it again or (more likely) transfer it to the device to finish watching on the go
- Movies rented directly to

Tv stay on the device
My two cents on the pro/con arguments of this new service: Jobs stressed that most people only watch the movie ONCE and that is what this model is based on. Instead of buying the movie for $9.99 - $14.99 (from iTunes) you can rent it for $2.99-$3.99 (a little more for HD content and

Tv, but then HD DVD's cost more too. Considering the complexities of getting such a deal from all the major studios, I'd say apple did well and we'll see how it develops. Now, I'm off to watch my rental of 300 (currently not available for purchase).