Apple cell phone
Linux application replacements for Apple applications
From the above link here are my favorites.
1. How to get Push Gmail on your iPhone2. How to enable tethering now (prior to AT&T allowing it)3. How to sync your iPhone with multiple computers5. How to turn off the iPhone's accelerometer6. How to add a 5th row of numbers on your QWERTY keyboard7. How to quickly move apps between pages10. How to stop app crashes12. How to add words to your iPhone's dictionary13. How to disable auto-correct and auto-capitalize