Q: How do I see the app reviews I've written?

Open The Mac App Store, click on account on the right side and then sign in when it asks you. On the next screen that comes up you'll see "Reviews and Ratings" and next to that it tells you the number of reviews and ratings you've made. Click on "Manage" and the next screen will bring up every review you've ever written.

Do you know how to get a app idea to developement and launch?

Is there a way to do this:

1.) On an iPhone?

2.) On a Windows PC and/or in iTunes?