I spent last night trying to figure out the whole Twitter thing. I think I've mastered it. I found some very interesting groups/people to follow and learned a lot. I loved the link I found to you tube with the comparisions of the iPhone and Blackberry. I think I'm going to make the leap from my Blackberry to an iPhone but ... I'm so attached I don't know if I can do it. All opinions lead to the iPhone.
I even got into the apps from the iTunes store to see what was available. The promethean podcast are great. They are short snippits of video to explain different features in the ACTIVboard toolbar. Very clear and easy to learn from.