No need for serials and cracks to get the full version, (already done it for you).
No unnecessary registry changes. 
No boring installation of tool-bars in your browser or other unwanted things.
You can even run this torrent from an USB-Stick.
Easy Uninstall with the Windows control panel.
Choose where you want to put the files on your PC. 
These are a few things that makes a '2-click run' version a better version.

Adobe?« Flash?« Professional CS5  software is the industry standard for interactive authoring and delivery of immersive experiences that present consistently across personal computers, mobile devices, and screens of virtually any size and resolution. Adobe?« Flash?« Professional CS5 software combines expressive design features like a new multilingual text engine and more realistic inverse kinematics effects with timesaving development features like extensible code snippets and enhanced ActionScript authoring options.

Adobe Flash Professional CS5 brings Flash support for iPhone

Finally, it?ÇÖs happened! Adobe Flash Professional CS5 will now support Flash applications on iPhone and iPod Touch using ActionScript 3. Adobe Labs recently revealed a couple of such Flash apps at its annual MAX event.

Minimum system requirements

NOTE: Flash Professional CS5 is a 32-bit application which can be installed on computers with either 32-bit or 64-bit operating systems.