Steve Jobs is unfortunately no more with us, iPhone 4s (iphone is one of the biggest source of income for Apple) doesn't look that prospective. iPad 2 is another one and it helps them to stay on top. Some rumors may also keep the trend upwards, but it won't last long if they don't do anything. I agree with Chart Trader, his chart seems more realistic. We shall see what we shall see.
If Siri is going to be ported to iPhone 4, no sense in changing your iPhone to iPhone 4s (better CPU and camera doesn't give that much). iPad 3 with higher resolution screen and a really good camera would strenghthen, i agree.