Unhappy you can't have Flash on your iPhone 4? If you're willing to jump through a few hoops, you can now get a version of Flash, known as Frash, running on your iPhone 4. This version is said to run on the iPhone 3GS and iPads as well.
Comex, the guy who's also responsible for the famous JailbreakMe and Spirit tools, is behind this one too. Check out the video above to see it in action, and grab the detailed instructions at the Source Link to give it a go yourself.