The I-Touch we were given could prove useful as a timer, finding podcasts to download that relate to debate ( I was not aware that it cold do this previously) and looking at you tube videos. One useful thing here is that you tube and others have a lot of high school and college debate rounds that have been taped and put online. They are good for flowing drills and argument creation. No need to re-invent the wheel.
We have used I-Pads for awhile now in debate. In fact, check out memorialdebate.com and read about how to use I-Pads in debate- my students wrote the book on it!