- MyWi for tethering/mobile hotspot
- BiteSMS lets you send/respond to/view SMS messages without quitting your current app (press up on the volume control and then tap the volume icon to compose).
- Notifier, puts notification icons in the title menu and on your lock screen (notifications for email, missed call, voicemail, text messages, instant messages).
- SBSettings gives me quick one swipe access to turn off the phone, toggle 3G and other settings.
- Backgrounder + ProSwitcher for Palm Pre style multitasking
- 3G Unrestrictor for using Wifi only apps over 3G
- Netatalk/SSH access for custom theming
- MxTube lets me download and save youtube videos.
- Add vibrating haptic feedback to the keyboard
There are other reasons, but those are the ones off the top of my head.
It's amazing to me that Apple hasn't done anything to sort out the issue of notifications on the iPhone since day one. What's that? Your genre defining device requires me to swipe & unlock my phone just to see if an email's arrived since I was left it? Hmmm.
;)
That doesn't scare me in the least.