I currently have a 2007 MBP and am looking to upgrade it for the new uni-bodies, etc. I am curious to when the next date would be when apple decides to update there products - I don't want to spend the cash then have them update it.
Nobody knows for sure. The next generation of Intel stuff for laptops is due in Q1 2010, and it's not likely anything will happen before then, save perhaps minor spec bumps.