Our friend Branden has put together  a quick guide for installing Frash on your iPhone to get Flash working in Safari.

How-To Install Frash on your iPhone 4 • The Easy Way.

1. You must have a jailbroken iPhone 4. To do this go to JailbreakMe.com in Safari on your iPhone 4.
2. Add http://repo.benm.at as a source in Cydia.
3. Install the package titled “frash.”
4. Reboot your iPhone.
5. Enjoy Frash! You can test your install by going to homestarrunner.com.

[via Branden Flasch <-- Full Guide Available] Be sure to follow Branden on Twitter: @branden3112