Can Your Cell Phone Help You Get in Shape? [VIDEO]

No matter how hard I try, one thing I'm terrible about is eating too fast.  Then, I spend the rest of the day feeling achy and full, all because I didn't just eat more slowly.  Well, in addition to other fitness tools, it looks like there's an app for that!

Do you think you would buy and/or use any of these?  Let me know in the comments!