Using Iphone During Race

No.

Most races forbid this anyway. Early I used music for running but after a few weeks ditched it-found it one more thing to fuss with and distracting. I will use music on the trainer.

I carry my Samsung with me on the bike when I'm out on a workout, but only use it for GPS when I'm hopelessly lost after a wrong turn somewhere. 

When I trained for marathons/half marathons I used to run with an ipod, but since I can't swim with one, it's not safe to cycle with one, and I cannot wear one during the run, I don't use it anymore.  I play songs in my own head during the swim, too busy with bike handling during the cycle, and occasionally break out in karaoke during runs XD

I don't.  I like to hear what's going on around me and I like to have a few words with people whenever I can.

It's ban in races because it's dangerous. You will typically get DQed if you even have one on you.

I do train with music and my phone too. Leave it at transition in your race.

I thought it was usually a variable time penalty.  Either way, music is not allowed at any point of a tri.

I usually have my phone on the bike, and often on the run.  But I'm not using it, I just like to have it in case of emergency, although I have started a tracker app for the bike before. 

Excellent answer.

You are in a race with other like-minded people.  Don't shut them out.  Some of my best friendships have lasted only 8 miles of a marathon.

I'm continually amazed at how folks can spend endless hours training, but can't bother spending 20-30 minutes to go to the USAT website and read the rules of the sport. 

Mark

That is true. But what's more amazing is the amount of people that know it's against the rules to do this, but they do it anyways.

It can vary by race, but is more common to be one of 3 strikes for various infractions. So not necessarily a straight up DQ, but do a few things and it will be part of getting a DQ.

Drafting/positioning fouls are the varying time penalties. I believe they also count as one of the strikes.

It blows my mind that people would consider wearing headphones on a bike. I see it out on the bike paths, mostly with "recreational" riders. They are usually not wearing a helmet either. I feel like cycling is dangerous enough without cutting off one of your valuable senses to the outside world. In Florida, it is against the law to ride a bike with headphones/headset on, but I'm sure it is seldom enforced. 

I wear headphones occasionally when I run, but more and more I don't. It is just one more thing to mess with and wear, on top of my pepper spray (mostly for dogs), Garmin, sweatband, Road Id, and flashers. I run in the early morning in the dark, so it is already sort of unsafe, I like to be able to hear if a car is coming or the jingle of a dog collar. If I wear headphones, I only put one in.

From the USAT Most Common Rules Violations

I double checked after posting that before and you're right. However, I have seen it not be clear about an immediate penalty in some races, and there is the strikes. WTC is one who tends to make it unclear as they'll have the infractions listed, but may or may not say anything more than "penalty".

ETA: That is, it's just listed as a penalty, not as a "variable time penalty". It's been brought up that they leave out the strikes part sometimes as well, so the only thing left would be to assume that it's a DQ (which it isn't, not an outright DQ anyway).

Ouch. 

That being said, I don't mind running with some music from time to time, especially if I'm stuck on the treadmill.  However, NEVER on the bike and rarely on outdoor runs.  I bring my phone with me for a number of the reasons already given (get lost, flat tire, hurt, bonk, etc).

I work for Microsoft so I don't use an iDevice at all.

seriously though, only on the trainer or treadmill. beyond that, just me and my ears.. I've found that i'm faster on the run in races without the music anyway..

The only good reason is that you would like to give people with ill intent another couple of advantages - Planning time and the element of surprise.  I constantly startle people when I approach from behind and they are wearing earbuds.  After running behind them for several minutes and saying "good evening" or "Hi!" And I weigh 198 lbs. 

Don't a lot of the pro bike races let the riders wear radios now? I thought a few years ago a lot of the pro teams were protesting when the radios were banned, claiming that the radios make the race safer. Granted, they're not listening to music....but the distraction is still there along with the decreased ability to hear what's going on around them. They've got the hazards of othr riders and all the team / support / race cars when they're out of the peleton, but they still seem to get by. I know it's kind of an apples and oranges comparison.

I don't wear headphones on the bike, but I wouldn't ride any different if I did. It's probably a little safer without, but only a little bit. Of all the unsafe and crazy things I see people doing on their bikes these days, I don't think headphones or music is anywhere near the top of the list of things that the bike community needs to deal with these days.