Sure, they say that it's ideal for stashing your credit cards and lipstick, but the bad mom realizes pretty quickly that what it's really good for is stashing baby gear. Pacifier: check. Wipes: check. Spare diaper: check, and it provides bonus chest padding!
If there's a problem with this product, it's that it doesn't seem breastfeeding friendly - the storage flaps don't unlatch and fold down for nursing access - but that's easily remedied with a pair of scissors and some velcro or a pretty button. Just snip around the edges of the flap and stitch some velcro to the top (make sure to secure the opening of the fold, as well, so that your keys don't fall out when you've got the flaps down for nursing) and voila! Instant boob-purse! Toss your diaper bag! Impress your friends by fishing Cheerios out of your top at snacktime!
And if you can get a flask and an iPhone down there, too, more power to you.