Locating a lost iPhone 4 without App

No.

Yes, you can physically look for it yourself and possibly locate it that way, if you're lucky.

However, there is no way to remotely locate it via electronic means.

There are packages on the internet you can buy which can locate a phone by gps or other on a computer , but I do not know if they work with a iphone and are leagal unfortanly you need you phone in the begining to recieve the the text from the computer comfming it . Again don't know if it works on iphone or ipad if you have an apple I reccommend mobile me i have it and it great for other things to .