BillMinder simplifies your life by bringing all your bills into one manageable place. You will know at a glance which bills need your attention. You can also track your expenses with comprehensive charts and graphs.

PlaceTagger lets you use your iPhone to geotag your photos without additional expensive hardware. Just use the free Mac OS X application or Aperture plugin, which will sync with your iPhone to tag your photos.

Blipr is a fun way to send over 100 sounds to friends using push notifications. You can attach a message to the blips you send.

Tippy is a new spin on the ubiquitous tip calculator. It doesn't get much easier than this.