I've just been browsing the blog-o-sphere and came across this Blackjack card counting application at CasinoLabRat.com
It appears that for $1.99 you can download a little application for your iPhone that will allow you to secretly count the number of big cards and little card during blackjack to get an edge when the deck is over-balanced one way or the other.
It operates in a "stealth mode" and is supposed to vibrate in your pocket in your pocket when conditions are right.
Is it legal? IN a word NO While counting cards in your head is expected, using a device is usually specifically outlawed in most gambling jurisdictions.
EG. Counting cards with a device is a felony under Nevada law and is punishable by prison terms of between one and six years, or a fine of no more than $10,000, for the first offense.
So be careful out there guys n gals.
Source : Casino Lab Rat Blog : iPhone Blackjack application.