I haven't had the time to figure this out on my own yet... so if know one knows for fact then I will post again with my results. I know the iPhone 3GS isn't Multitasking (Duh). So what happens when you are in the middle of a run and the phone rings? will the Nike+ application pause your workout until the phone call is over? I definitly dont plan on taking phone calls when running, But was just curious if anyone knew how this worked. I searched this forum and Google... none of the articles addressed this at all. One article mentioned that you can take calls but it didnt say what happens with the workout data. anyway... I'll stop rambling... was just curious if anyone actually knew or have had a chance to play with it *********************UPDATE*********************** I finally had a chance to play around with this. If a call comes in and you let it go to voice mail or end the call then your workout continues and keeps on going uninterrupted. If you answer the phone then the workout automatically pauses. when you end the call you are returned immediately to the Nike+ app and can press the resume button to continue your workout. If you get a call... stop running and answer, letting it auto pause the workout, or ignore and keep going. This is actually pretty nice. I can rarely carry on a conversation when running, so taking a call would actually hurt my pace and overall workout. This means that I can keep the phone functions turned on and be able to monitor calls as I am running; Ignoring the calls that seem unimportant and taking only the calls I feel are worth stopping for. While I find this beneficial as a runner, Walkers may have different feelings on it. I know other walkers who like to catch up with friends and family while walking, using Nike+ on the iPhone 3G S prohibits that. I'm thinking it will pause only if you answer?