iphone questions.

Anyone know of a good (see preferably free) app for photo editing?
A flickr uploader that lets you upload more than one photo at a time?
A GPS tracker or friend finder that does not use text messages and well actually works?
A chat type program that will show me when I have a new message and don't have to keep safari open to get messages?
A weekly points tracker for Weight Watchers that not only does daily points but your bank of 35?

Thats it for NOW.