No, there is although an iPhone case for the 4 that has a keyboard that plugs and you can use.
iphone 4 definetely
Yes, just either slide the little bar, or type in the password
my touch 4g is better because it can slide and an i phone 4 cant -BTW i have a my touch 4g and it is AWESOME
No.
An iPhone 4 is an iPhone.....
It is the 4th model of iPhone. But iPhone generations do not go from one up: 1. iPhone 2. iPhone 3G (because of 3G connection) 3. iPhone 3GS 4. iPhone 4. 5. iPhone 4S
It depends. If the iPhone 4 case is for the GSM model (AT&T) then you can put it on, but the ringer slide button will be partially obscured. If the case is for CDMA models (Verizon) then yes, it will fit because when Apple made the Verizon iPhone 4 they upgraded it to be slightly different, and that is the shape all iPhone 4S's are now. iPhone 4 are very similar in shape with iPhone 4S. If you really want, you can put the iPhone 4S phone into a iPhone 4S case. but it may seems no good in apperance, as they are not exactly same.
simple, to turn it on press the top right button and to unlock it slide the thing at the bottom... enjoy your iphone...
No, they made the iPhone 4 case for a iPhone 4 not a droid.
No you both have to have an iphone 4 :)
iPhone 3GS. Then the iPhone 4 and then the iPhone 4S.
Do the iPhone 4 have ios5