iPhone SDK

• Cocoa Touch
  • Multi-touch events and controls
  • Accelerometer support
  • View hierarchy
  • Localization (i18n)
  • Camera support
• Media
  • OpenAL
  • audio mixing and recording
  • Video playback
  • Image file formats
  • Quartz
  • Core Animation
  • OpenGL ES
• Core Services
  • Networking
  • Embedded SQLite database
  • Core Location
  • Threads
• OS X Kernel
  • TCP/IP
  • Sockets
  • Power management
  • File system
  • Security