I found this site a couple of months ago, it's a service that will call you a few minutes before an auction on your watched listed on ebay is going to end and they will allow you to place bids using your phone. It's a pretty genious idea, because it has not been done before and it could be very useful.
The site is totally free, but it makes it's revenue by being an eBay affiliate and all the bids placed through their service are counted as bids through their affiliate links.
I figured some of you may be interested in looking at the site as it's an example of a cool unique idea... that plus you can get $20 in your PayPal account absolutely free for trying their service

Here is a copy of my original post on SlickDeals:
UnwiredBuyer.com is a new ebay bidding service that allows you to place bids on items via your cell phone (or any other phone). They are offering $20 in your PayPal account for giving them a try.
What the service does is call you when an auction that is on your watch list is close to being over. Then using your phone buttons you can bid on this item - which is what you have to do to get your $20.
All you need to do is sign up for an account and use the service to place a bid on any auction, you do
not have to win. The entire process took me 20 minutes.
What to do exactly:
1. Go to http://www.unwiredbuyer.com and on the right fill out the registration. Use the same email as your paypal email when you sign up, because that is where they will send the money.
2. Find an auction that is close to being done and add it to your watch list. Since I only wanted the $20 and did not want to acutally buy anything, I found a car auction that was 5 minutes from being over with a price that seemed to be way below reserve price
3. Go to your Unwiredbuyer account and click on "Update Auctions," this should refresh your page and display the item that you just added to your watch list. Make sure "Call Me" is checked on the item.
4. Wait for a call from unwiredbuyer. My call came within a minute of me clicking "Update Auctions," the call comes with 3 minutes left in the auction normally
5. The voice will tell you what auction it's calling about, how much time is left and what the bid is it right now. Then it will give you an option of placing the lowest possible bid, which is what I did. I did win the auction, but the reserve was not met, which is good,
6. You will get an email from confirming that you have used their service and now can get your $20. Follow the link in the email, to confirm.
7. You're done! The money was in my PayPal within minutes of me clicking the confirmation link.
Rules for $20 Signup Bonus :
- To qualify for the $20 signup bonus, the user must register for UnWired Buyer and use the service to bid on an auction using their phone within 30 days. The $20 signup bonus is for new users only.
- New users MUST USE UNWIRED BUYER TO BID ON AN AUCTION WITHIN 30 DAYS from date of signup. This promotional offer cannot be transferred or forwarded.
- TO QUALIFY, USERS MUST HAVE AN EBAY FEEDBACK SCORE OF 10 OR MORE (or the user must have been a registered eBay user for over 12 months).
- The $20 Signup Bonus is limited to one (1) per valid eBay account.
- The $20 Signup Bonus is valid only to legal residents of the US and Canada.
- UnWired Buyer employees and their families are not eligible.
- UnWired Buyer reserves the right to request additional information regarding the claim and the right to confirm conformance to eBay user regulations. Any misrepresentation or fraudulent information disqualifies the bonus.
- UnWired Buyer, Inc. reserves the right to change or modify this offer at any time.