Sure, iTunes and iPhoto may be the Big iKahunas as far as hints are concerned...but it takes a whole iVillage of iApps to make a digital hub. The rest—iCal (for tracking appointments and events), iChat (for online conversations), iMovie (for digital movie-making), and iDVD (for producing DVDs on SuperDrive machines)—have a few tricks up their respective sleeves as well.