We definitely see a future for these devices, and other similar ones, in our district. We feel that devices like the iPad could replace a cart (or two) of laptops in our elementary buildings. Through our lease purchasing process, all elementary computers will be replaced by next fall, so it's been good timing for all of this. We still have lots of questions, but many won't be answered until we start moving forward.
One mistake I've already made (in my opinion), is that our resources are stored on our Intranet. It takes an extra step for us to share with the rest of the world. I'm always more than welcome to share, it just isn't as convenient because you have to ask :)
On our Intranet, we've created a FAQ section (from what the buttons do to purchase process), an editable spreadsheet of all of our purchased apps in the district, and a page with links to a variety of resources.
Here are some links that we are starting our teachers out with (thanks to Richard Byrne for sharing bit.ly bundles yesterday!):