While perusing Derek's blog I noticed a particular post about an HP Touch Screen Computer. The listed uses immediately made my synapses fire and think about how I could twist this to a math bend (I'm getting really good at doing this!). What I came up with is using Geometer's Sketchpad in concert with the touch screen to give the students MORE tactile interaction with it (actually getting to pull the figure around with your fingers, lots more fun than a mouse) as well as making it into a notes/homework repository. The students could (similarly to the Tablet PC) do all their homework on the computer and e-mail it to the teacher so *GASP* its legible! (They can convert it to text and send a copy of the 'hand written' so the teacher knows its their work.)

Sarah D.'s blog about Cell Phones in the classroom made me remember when I was observing and interning in high school math classrooms and the most common excuse for having their cell phone out in class was that they needed the calculator. I always thought it was a kind of tricky way for the kids to try to use their phone in class.
I can see however, that in the future, cell phones, especially ones like the iPhone will be an asset to learning. This does however give the students more chances to cheat on tests (its easier to send other students the answers when they have something like a cell phone available). If a way can be found to limit this availability, then I think cell phones will have a place in the classroom.