Shopping around for a new smartphone? You're in luck.

Apple is expected to announce the iPhone 5 tomorrow at a highly-anticipated event in San Francisco (which you've probably heard about a dozen times over). But in the wake of Apple mania that's sure to ensue over the next few weeks, Amazon is offering customers a sweet deal on the competition's latest product, a new Samsung Galaxy S III for only $99.99

According to Amazon's website, the listed retail value of the S3 was originally $699.99. Most large cellphone carriers sell the device at a lower price when customers sign up for a two-year contract. The Android phone was released earlier this summer, and has since received relatively high reviews, with over 20 million devices sold globally over the last three months.

In fact, Samsung's Galaxy S III recently overthrew Apple's product in the U.S. marketplace for the first time since the iPhone 4S was released in October of 2011. According to retail data gathered by Canaccord Genuity analyst Michael Walkley, the Galaxy was ranked as the best-selling smartphone at T-Mobile, Sprint and Verizon Wireless, with only AT&T selling more iPhones this past August.

But Engadget notes that you'll "have to sign up for a new individual or family activation" to grab this half-off deal, and that the sale will be available only "for a very limited" amount of time.

Are you holding out for the iPhone 5, or is the Galaxy S III offer too great of a steal to pass up? Let us know your thoughts in the comments section, or tweet us at [@HuffPostTech]. Then read up on what we wish Apple would announce at the media event tomorrow, or flip through the slideshow (below) to see some of the uses for your old iPhone.

[Hat Tip: Business Insider]

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  • 1. Give It To Your Kids So They Stop Taking Yours...

    Every parent, aunt and uncle knows that no toy in the history of toys has ever been as appealing to a kid as an iPhone. They are shiny, they have games and grown-ups use them for important things. More importantly, they are either off-limits or doled out in limited quantities as a reward for, say, sitting still for a minute. Load up your old iPhone with games and give it to a deserving child in your life.

  • 2. ...Or To Your Mom So She Can Finally See The Light

    Alternately, if a Luddite adult has been thinking of taking the plunge into the world of smartphones, your old iPhone may help him or her get over the hump. If you have an iPhone 4 or 4S, you might also find someone who's still hanging on to an earlier model and give them the gift of an upgrade. You may just buy a friend for life (or at least until iPhone 6 comes out).

  • 3. Use It As A Teeny-Tiny iPad

    You'll be able to watch videos, send email and search Wikipedia for random facts to end cocktail-party disagreements with your decommissioned iPhone -- as long as you have a Wi-Fi connection. There's even a camera, which means you can avoid being that guy (or gal) at the concert who's turning heads for taking photos with an iPad.

  • 4. Donate To Charity

    Several charities accept old phones for donation, though it's worth remembering that these groups likely won't physically give your old phones to people in need. Rather, they work with phone recyclers and sell your donated phones to them. A nonprofit group called Cell Phones for Soldiers will take your "gently used" phone and sell it to recycling company ReCellular. It will then use the proceeds to buy calling cards for soldiers. The National Coalition Against Domestic Violence works with another recycling group in a similar manner. About 60 percent of the phones it collects are refurbished and resold. The money goes toward supporting the coalition. The remaining 40 percent of the phones are recycled, according to the group's website. It pays for shipping if you are mailing three or more phones. There are a few more suggestions from New York's Department of Environmental Conservation at: .

  • 5. Alarm Clock

    Do you still use that old radio alarm you bought for your college dorm room in the 20th century? Join the 21st century by turning your old iPhone into an alarm clock. Hide it in a different spot in your bed each night for an added challenge.

  • 6. Sell, Sell, Sell!

    Join the eBay hordes and sell your phone for a few hundred bucks if you can. There will likely be a flood of the gadgets soon after people start getting their new phones, so it might make sense to wait a little. A company called Gazelle, meanwhile, will make an offer for your old phone based on its condition, your phone carrier and other information. A 32 gigabyte iPhone 4S on Verizon Wireless, for example, was recently going for $237 if it's in good condition and $90 if it's broken.

  • 7. Trade In At GameStop

    The video game retailer offers cash or store credit for old iPhones (along with iPods and iPads). The service is only available in stores and not online. A 32 gigabyte iPhone 4S on Verizon will get you up to $335 in store credit or up to $268 in cash.

  • 8. Stream Music

    Stick that baby in a speaker dock, spring for a Pandora subscription ($36 per year) or Spotify ($10 per month) and bam, you have a stereo. Or try SoundCloud. Although it's meant to let you create and share music with people, it's also a good place to listen to DJs you like or discover new ones. TuneIn, meanwhile, will let you listen to online radio stations playing music, sports, news or talk shows.

  • 9. Keep As A Backup In Case You Lose Your Fancy New One.

    Nearly one-third of cellphone owners have had their gadgets lost or stolen, according to a recent survey from Pew Internet & Pew Internet & American Life Project.

  • 10. Use As A Camera

    At its core, a decommissioned iPhone is a hard drive with a camera. Snap photos with it. No Canon needed. You can also use the iPhone to move photos and other files from one computer to another.

  • 11. Recycle With Apple

    Apple Inc.'s own recycling program will give you an Apple gift card if it is determined to have a "monetary value." A 32 gigabyte iPhone 4S with some light scratches but in good working condition was recently estimated at $280. That's higher than Gazelle, but you'll have to spend the money at Apple. The company also accepts broken phones for recycling but you won't get any money for them.