A new email from Apple CEO Steve Jobs appears to confirm that the company will soon be issuing a software update to address issues with the iPhone 3G’s performance under iOS 4.

The new email came in response to feedback sent by a customer who expressed frustration over the performance of his iPhone 3G, citing many of the problems that other iPhone 3G users have also echoed with scrolling, zooming, and while typing on the touch keyboard.

I’ve waited patiently through 4.0.1 and 4.0.2, looking for a fix that will make my phone work again. I’ve read the forums that advise me to jailbreak my phone or use some other method so I can downgrade back to a version of iPhone 3, however I’m not prepared to use a method that is not supported by Apple.

Jobs’ response, in one of his famous and rare replies, was unsurprisingly terse:

Software update coming soon.

Sent from my iPhone

While Jobs did not offer details on the planned software update, he was most likely referring to iOS 4.1, which has been in testing with developers. Anecdotal reports have indicated that the iOS 4.1 betas do seem to be improving performance on the iPhone 3G, but confirmation that the company is addressing the issues will be welcome news to users who have been frustrated by iOS 4 performance on their devices.