I will start that I use my blackberry for many things aside from Phone calls and email. I email myself recipes, use it as my grocery list, my to-do list - you get the idea. The reason why I think I am going to love the iPhone so much is that I can do all of my usual things AND have games. Additionally - when ever I say "gee I wish there was something that did X, Y or Z" I consistently get told "there is an app for that" and well there is.
SO the long story short - I was looking for something to track my food intake, weight, and exercises and I came up with the app "Lose it" (here are some screen shots from the website)
I just love all of it - I love that you can add breakfast, lunch, supper or snacks and then go back to previous days and then just copy something
I love that you can create your own food (such as my morning smoothie) and then having there instead of having to reenter the food each time.
I LOVE that it is on my iPod and that I can literally take it anywhere with me and add what I am eating to it.
While there are some usual downsides (e.g., that it doesn't have every food in it) it is something that was very easily over come.
I can see this being a WONDERFUL tool. I know from my experience a couple of years ago the best tool that assisted in my weight loss was journaling. However, it was not something that I could realistically keep up with the method I was using (pen and note book) for long term.
This is the perfect replacement!!
The app was very simple to use - I put it my current weight, my goal weight and how much I wanted to loose each week. It then suggested a daily calorie limit. As I entered my daily food intake it would show me how many calories I had left and them take into account how calories I burnt through exercise.
I will continue to update as I use it for a longer period. For now, I only put it some test data and then todays information but I must say I love it and highly recommend it!