Hello everyone, looking for some help here... I am thinking about getting the iPad and have some questions that I was hoping to get answered. First, I am not tech savvy, so forgive my ignorance if some of these questions seem off the wall. I'm on the road a lot for work and bought a Macbook Air and absolutely loved the portability of it, and when the iPad came out, it was right up my alley due to the fact that it had the 3G for sending and receiving emails without having to find a WiFi spot, which has always been a pain for me. I've read a lot about the ability to tether the iPad with my iPhone, however, I have no clue how to do this and was wondering how easy this is to do and if I have to jailbreak my iPhone or the iPad, something else I have no idea how to do. Basically, I paid somebody to set up all of my computers with Mobile Me, so I could have access to my files no matter what computer I am working on (17 in. Macbook Pro, 15 in. Macbook Pro, Macbook Air). Is this something that can be done with the iPad as well? Also, I do a lot of PowerPoint presentations, and have gotten different opinions on whether or not these would be compatible with the iPad. Can someone clarify this for me? I discontinued use of my internet card due to the fact that it was costing $99 a month, and would love to be able to tether the iPad or any of my other computers for that matter. If there is anybody in the Philadelphia area that would be able to assist me with any of this, I would be more than interested. My basic use for the iPad would be sending and receiving emails, editing and working on PowerPoints, listening to music and watching movies all while on the road. I know that the iPad is not a computer replacement, just like the Macbook Air isn't, but for somebody who is on the road, it seems like a home run. One last question: I have read that tethering or jail breaking any device from Apple voids the warranty...is this true? Thanks for all of your input. sorry for the long winded post.