I'll admit it does feel every so slightly early to drop optical drives from Pro machines to me... but I also think I'm probably wrong in thinking that way. It's more of a gut reaction to loosing the built-in drive after so many years of relying on it I think.
Apple's path for laptops (and desktops too really) is now starting to seem fairly clear and it centres around three main things. 1) App store to deliver the bulk of applications though with alternative means available for at least the next couple of years (and probably far far longer). 2) iCloud to backup data and start to tie together apps from iOS and OS X. 3) Thunderbolt.
It's Thunderbolt that's the real ace in the hole here IMO. Even now with this first version we've got a monitor packing gigabit ethernet, 3 USB and 1 Firewire port all running flat out as well as providing the video feed to both that monitor and, potentially, a daisy-chained display as well. It's not hard to imagine a relatively cheap hub with a single thunderbolt cable and magsafe adaptor providing easy access to external hard disks and optical drives when you're at the desk. Heck, as things improve perhaps external GPU's will become an option as well, turn any Macbook Air into something close to a Mac Pro with a single cable.
Looking at the possibility of these hitting this year I can see a couple of potential problems though:
1) It kinda feels like Apple would prefer to have Ivy Bridge available for a thinner MBP. Either that or they must have a pretty impressive cooling system to run both Sandy Bridge and a discrete GPU in a smaller package than the current MBP.
2) Prices for large SSD's are still on the high side and a pro machine would need a pretty hefty chunk of storage on-board. Maybe the same hybrid system as build to order iMac's could help there...
3) Battery life. I assume that without the need to house an optical drive Apple could come up with a more efficient battery configuration than they currently have but they're still going to have to go some to match the current machines.
Ah well, see what happens I guess. Personally I hope this is true as it would be a VERY interesting step forward and shake things up a bit in the rest of the industry. If you want an optical drive externals only cost £20 anyway
Apple's path for laptops (and desktops too really) is now starting to seem fairly clear and it centres around three main things. 1) App store to deliver the bulk of applications though with alternative means available for at least the next couple of years (and probably far far longer). 2) iCloud to backup data and start to tie together apps from iOS and OS X. 3) Thunderbolt.
It's Thunderbolt that's the real ace in the hole here IMO. Even now with this first version we've got a monitor packing gigabit ethernet, 3 USB and 1 Firewire port all running flat out as well as providing the video feed to both that monitor and, potentially, a daisy-chained display as well. It's not hard to imagine a relatively cheap hub with a single thunderbolt cable and magsafe adaptor providing easy access to external hard disks and optical drives when you're at the desk. Heck, as things improve perhaps external GPU's will become an option as well, turn any Macbook Air into something close to a Mac Pro with a single cable.
Looking at the possibility of these hitting this year I can see a couple of potential problems though:
1) It kinda feels like Apple would prefer to have Ivy Bridge available for a thinner MBP. Either that or they must have a pretty impressive cooling system to run both Sandy Bridge and a discrete GPU in a smaller package than the current MBP.
2) Prices for large SSD's are still on the high side and a pro machine would need a pretty hefty chunk of storage on-board. Maybe the same hybrid system as build to order iMac's could help there...
3) Battery life. I assume that without the need to house an optical drive Apple could come up with a more efficient battery configuration than they currently have but they're still going to have to go some to match the current machines.
Ah well, see what happens I guess. Personally I hope this is true as it would be a VERY interesting step forward and shake things up a bit in the rest of the industry. If you want an optical drive externals only cost £20 anyway