Because your post is so generalize and doesn't make sense. What "Apps" are you talking about? Are talking about Apps for Android or the iPhone? You can't do that with CS5 if that's what you meant. Are you talking about creating ICONS for the APPS?
Well, I thought he was talking about Photoshop (Creative Suite 5). Dude, can't you just read the manual? You just can't say "I want to learn how to write apps", you must have an idea in mind or at least through learning the manual you will know what to do. What kind of app will you be making? Is it a utility, a game, a sports updater, what? And you can't write iPhone apps without the Apple SDK on a Mac... I don't think, unless you're really savvy to write them with something else and jailbreak, for which the iTunes store won't approve. For android apps, I believe you can use a Java program or the Google kit. And, seriously speaking, though, if you can't even find HOW or a TUTORIAL on writing apps, you're thinking too far ahead on apps, instead of learning how to Google...
I'm interested in this- I had no idea that you could just make an app using the CS5 suite. I'm pretty sure that you can't do it in flash, since the iphone doesn't natively support flash. (Lame ass joke omitted)
You do realize knowing how to use flash doesn't make you a great app creator right? It's a multitude of different programs not just one. That's like saying: "I want to make a website, I want to know how to use photoshop." Well. Do you know how to code? No, you don't. That being said, you should take a class at DeVry.
Haha! You're still using CS5? Wow. Move onto CS5.5. Get with the times bra. All joking aside, creating an "app" is pretty in depth. You're gonna have to do some reading online and put together a myriad of tutorials...
It really doesn't matter just a simple rolling ball but the point of it is knowing coding and step by step on how it's done.
You can use Adobe Flex 4.5 (part of Adobe CS 5.5) to make apps for Android, and in late June you'll be able to make apps for iPhone and the Blackberry Playbook. I do some tutoring on the side, though my time is tight lately. I can help you get started, but it would help to know what type of programming background you have and how complicated you want to make the app.