During a financial conference call, Apple told investors that they expect the company’s gross margins will by down to 31.5% (from 34.8%) in Q4 2008 with expectations of further declines down to 30% for fiscal 2009. Investment bank Piper Jaffray issued a note today based on Apple’s future outlook in 2008 and 2009.

Piper Jaffray believes that Apple is readying new iPod and notebook products that will apply downward pressure to profit margins because they’ll be priced more affordably, such as 13-inch MacBook that will fetch less than $1000. Specifically, the quote prices starting at $999 (down from $1099) for the MacBook and $1,799 (down from $1999) for the MacBook Pro. They also expect “slightly redesigned” iPods and “lower-cost” iPod Touches in time for the holiday buying season. The iPod Shuffle is prized at $49 from the original $79.

Businessweek’s Peter Burrows also thinks that Apple might even be bringing a “MacBook Touch” tablet . Steve Jobs power is undeniable when he pulls “one more thing” out of his sleeve, but it seems more likely that Apple will adapt its current lineup with what may be—for Mac users, at least—jaw-dropping pricing that even the staunchest PC die-hard will have trouble disregarding.