Andrea,
All I have are what the rumor sites are saying which is that a MacBook Pro update is due any day now. In fact, it was reported this morning that BestBuy has some dummy Apple SKUs loaded on their internal ordering system. I check my distributor every day and haven't seen anything.
It should be worth the wait. I have the i7 27" iMac and it's really fast. In fact, it's faster than a 1 year old MacPro I have in the office.