I got my hands on one and I have to say. I'll keep my S.
		
		
	 
Are your hands really little enough to be able to use an iPhone 4S? Take a look at the 
Sizing Chart: What is the Right Size Phone.
If you answer "Yes" to these questions, you may not want an iPhone. The iPhone 4S is stil missing these features.
 
Do you want:
1. A faster 4G/LTE phone?
2. A real Notification LED?
3. Removable/Upgradeable Battery?
5. HD Video Chat not VGA Chat?
6. LED Display?
7. DLNA for presentations or watch movies on your TV?
8. 
Near Field Communication (NFC) to share a song or app
9. Controllable Haptic feedback (vibrate on key-touch)? 
10. 
Full Gmail (Priority Inbox, etc.)?
11. Live Icons?
12. Toggles to turn settings on/off?
13. Widgets to see apps without opening them?
14. 
Amazon Appstore with the free paid app of the day?
15. Other app stores like 
Getjar for free paid apps?
16. 
Amazon MP3 music options and 
free music downloads.
17. Notification bar apps like the 
Weather Channel for temperature?
18. Full 
Notification control: how often to repeat, vibrate, LED, etc.?
19. 15-Minute free trial on apps?
20. 
Theming to change your phone into anything?
21. 
Visual Voicemail with Contact Photos?
22. True hands-free Voice Commands?
23. 
Turn-by-turn navigation for free?
24. 
Live Wallpaper?
25. 
Swype, the keyboard that set the typing records?
26. A Real predictive keyboards like 
SwiftKey?
27. To connect a 
Bluetooth wireless mouse or keyboard, PS3 game controller?
28. 
USB Host lets you plug in a memory thumb drive, 
PS3 Game Controller, etc.
29. To see, delete, rename, or move actual files just like on a PC?
 
See the 
Apple User's Guide to Android and the 
Phone Comparison for more.