a dual core processor is only useful when
- you have software that supports two cores
- you have an OS with true multitasking
Number one will come at some time. Right now its a non issue.
Number two is probably not the case until Apple really changes its OS. I guess iOS 5 could do this.
As for Safari, the forthcoming iOS 4.3 will change some parts in Safari and its supposed to run faster because of this. Apparently all devices running 4.3 will benefit
I am looking forward to iOS 4.3 for my iPad 1 next week
