This update is in essence a bomb (in a negative sense) or the bomb (if you are part of the YouTube generation), depending on who you are.
Pros:
Hybrid SLI
--but I would like to know if there is a manual way to switch between the integrated and dedicated graphics and if the graphics can be used in an SLI configuration.
DDR3 RAM
--Conserves power (only 1.5V vs. DDR2 1.8V)
Mini-DisplayPort
--Most versatile and forward-looking video-output.
Screen
--All laptops now sport LED screens.
Cons
DDR3 RAM
--The price for this RAM is incredibly high. DDR2 800 is $40 for 4GB. Currently, DDR3 10066 RAM is $120 unmatched, no dual-channel; $170 matched, dual-channel configuration. OUCH! Apple actually seems reasonable here ($150).
--Faster FSB offset by increase in latency.
Mini-DisplayPort
--More adapters to buy. Apple could have included at least a mini-displayport to DVI/dual link DVI for the MBP.
--Still need mini-DisplayPort to DisplayPort cable for other DisplayPort capable monitors.
FireWire
--No FW for MB; Need adapter for FW400 for MBP. Again, another adapter to carry. Most external/portable HDDs include FW400 with USB or E-SATA. FW800 is almost always included only if FW400 is included.
Screen
--Only glassy/glossy screen options; no matte option.
Where is the line between the MB and MBP?
--If you want FW without an Ethernet to FW adapter, you must buy a MBP.
--If you want E-SATA, you must buy a MBP and an ExpressCard.
--If you want Hybrid SLI/dedicated graphics, you must buy a MBP.
--If you want a screen larger than 13.3", you must buy a MBP.
--Are all screens IPS-based or have the MBP screens been downgraded to TNs like the former MBs?