I’m getting a kick out of the mature-audience iPhone apps (though they seem more like immature audience apps, really). Pull my Finger is the best – it makes a bunch of different fart sounds when you tap on a variety of images of people’s fingers. With iBeer you can amaze your friends by virtually chugging beer (realistic swallowing sound included). Christmas Carols by iChristmas not only gives you the lyrics to all of your favorite holiday soungs, it also plays the tune so you can sing along! And Holiday Snow Globe is – you guessed it! – a pretty darned realistic snow globe for your iPhone.

All can be had for a mere 99 cents each! If this doesn’t totally justify buying an iPhone or iPod touch, I don’t know what does!