Still debating whether or not to spring for the new iPhone 4S tomorrow? While it does come with some shiny new hardware (and software) inside, not everyone will benefit from an upgrade. Debate no more — here, the pros and cons of the new smartphone, complete with a verdict on who should buy it and who should skip it.

Pros

• New camera — The 8MP camera with simple editing features (crop, rotate, enhance, and red-eye reduction), a backside illumination sensor, and larger aperture (for better low-light and white balance correction) make the iPhone 4S's camera one that competes with regular point-and-shoots. It will also come with face detection and image stabilization and the ability to capture HD 1080p video.
• Faster processor — The custom A5 chip in the iPhone 4S is the same one you'll find on the iPad 2, which means the iPhone 4S will be faster in processing speeds, games, and downloads.
• More carriers — Since the iPhone 4S is compatible with CDMA and GSM cellular bands, you can use it in more places around the globe. Even on Sprint's network, if you're looking for a change.
• Siri integration — Apple's new Assistant feature basically turns the iPhone 4S into a voice recognizing personal assistant. The demo during the keynote was impressive and highlighted some interesting uses for the blind, hands-free texting, and more.
• Wireless syncing — Raise the roof for wireless sync! This will be an iOS 5 feature that will be compatible for the iPad and iPod Touch as well, but I couldn't help but mention the fact that you'll soon be able to set up your devices and get updates without connecting your iDevice to a Mac or PC.
• Airplay — If you've got an Apple TV, the iPhone 4S will allow you to stream what's playing on your device to your HDTV with Airplay, which is built right into the new iPhone.
• Fingerprint resistant — The iPhone 4S has an oleophobic coating on its glass exterior, making it resistant to fingerprints by repelling oils in your fingers.

Read through our iPhone 4S cons, who should buy, and tips for upgrading when you read more.

In addition to lip chap and my cell phone, gum rounds out my list of essential purse items. But when it comes to chewing gum in general, how much do we really know about these tasty, rubbery pieces we regularly munch on? Are there any benefits to chomping?

Health Benefits

• Heartburn relief: In 2005, researchers found that the saliva stimulated by chewing seemed to neutralize the digestive stomach acid that had leaked into the esophagus. It also seemed to help force fluids back into the stomach and therefore provide heartburn relief. Chewing gum — sugarless, of course — for 30 minutes did the trick and can provide relief for up to three hours.
• Kills bacteria and freshens breath: Chewing stimulates saliva production, and the more saliva you have in your mouth, the less bacteria you will have. Gum that is said to be sweetened with xylitol is said to increase salivation and prevent bacteria from replicating in the mouth. In terms of what flavor to go with, it's best to stick with cinnamon, as it can actually help to decrease bacteria in your mouth — sugar-free cinnamon, naturally.

Keep reading for more pros and find out if chewing gum poses any health risks!

A dose of healthy competition doesn't hurt anyone, right? Ask one member of a competitive couple and you'll probably hear a different answer. Despite best efforts, it's easy to fall into a routine and gain weight when you're in a relationship — especially a new one. (If you're concerned about this, get a few tips here!)

Working out with your significant other is a great way to spend quality time together while getting fit at the same time — but it's not without its drawbacks. Here, a list of pros and cons from a girl who's been through the trenches.

Pro: Quality time
Busy schedules often mean not spending as much time as you'd like to spend together, so scheduling a workout together means spending QT with your sweetie.

Con: Scheduling woes
He has to work late, you have to work early, and who wants to squander precious hours of sleep on the weekends? Sometimes scheduling a workout actually creates more chaos than it's worth.

Check out the rest after the break.

I opened my in-flight magazine on a recent trip to find the crossword puzzle and cartoon page covered entirely by a list, with "Susan" on one side and "Les" on the other. Someone had obviously been weighing the pros and cons of two women — very thoroughly.

Under Susan are such pros as "sex is damn good" and "good cook," while the Les side says the sex was just "adequate" but that she's an "excellent cook." However, Les's extensive cons — including "not ecological" and "tech disaster" — suggest that Susan wins. Too bad the answers to this puzzle aren't on page 100.

I've weighed the pros and cons of a relationship before, but I don't think I've gone so far as to make a list — and it's certainly never been so urgent that I had to use the pages of an in-flight magazine! I've reproduced the list below for your voyeuristic pleasure, so check it out — it's quite entertaining. Meanwhile, tell me, have you ever made a pro vs. con list when choosing between two people or trying to decide whether to stay with someone?

With daylight saving time, those who used to fit their workouts in after work will be left in the dark. So working out in a gym is a great option. There are so many cardio machines to choose from, ranging from the ever-popular treadmill, to the lower-impact elliptical, to the stationary bike. The stair climber is another option that I don't see too many people using. Check out the chart below to see what's good and not so good about this machine.

To see the rest of the pros and cons, read more

I love riding my bike outside, but if it's raining or too dark out, the stationary bike is a great option for me. Since it may not be the most popular cardio machine at the gym, there's usually one available. Here are some pros and cons to think about when hopping on one.

To see the rest of the pros and cons, read more

Since running is one of my favorite forms of cardio, I'm a big fan of the treadmill when I can't get outside for a run. I'm also big into the elliptical, and by the looks of my gym, it appears tons of other people are too. While it's a popular piece of gym equipment for so many reasons, there are also some disadvantages to using one. Check out the chart below to see if an elliptical is the right machine for you.

To see the rest of the pros and cons, read more