Hello! I would like to know whether it is smart to buy a MBP now or wait for Lion? I am assuming the MBP will not be changing at all this year - so if I buy it now, how easy will it be to upgrade to Lion? Are prices usually over 100 dollars to upgrade? Is there a suspected date for Lion release? Summer is a long time to wait. Thinking about i7, 13" MBP with 4GB ram.