Source: http://gizmodo.com/5635641/jailbroken-iphone-3g-and-3gss-could-soon-have-hdr-photos
Speaking of Cydia, if you want to get those ultra cool HDR photos on your iPhone 3G or 3GS, jailbreak them and be all patient like as you wait for Will Strafach's HDR tweak to arrive.
All you have to do is watch for the inevitable 4.1 jailbreak. When that comes, you *should* be able to implement what Strafach is talking about here on your older device. Fingers crossed. [Twitter via BGR]