Apple's iMovie app, which costs $4.99, is officially available only to iPhone 4 owners. But hackers tipped off tech blog Redmond Pie that they were able to get the app running on the iPhone 3GS. The process, according to tipster David Romhan Torres, starts with users jailbreaking an iPhone 3GS running iOS 4. From there, they need to modify a few items in the app's files to get it running.
Exactly why Apple has decided to not support the iPhone 3GS with iMovie is unknown. Some have speculated that the iPhone 3GS' 256MB of RAM, compared to the iPhone 4's 512MB of RAM, could have contributed to the decision. Either way, those who have a desire to run iMovie on the iPhone 3GS might be able to pull it off with just a few tweaks.