Can't say I've ever come across anyone that has noticed any trackpad lag with the Air. Have both the Air and an iMac with a Magic Trackpad, can't say I really notice a difference. I'll have a close look later.
As for the Air vs the Pro, it's been covered several times before on here, worth having a search. Essentially, while the Pro is the superior machine on paper, the iGPU still isn't up to the task of powering the display, which really hampers the experience (laggy OS X animations and scrolling on heavy webpages for example) that would really frustrate me if I owned one. I personally prefer the form factor of the Air too (the taper really makes it a lovely typing experience).
I can get a good 9+ hours running a Windows VM in Fusion, with basic productivity tasks (most recent being Access, some Notepad++). The rMBP doesn't match that, however it's probably more than enough for the majority of users.
As for the Air vs the Pro, it's been covered several times before on here, worth having a search. Essentially, while the Pro is the superior machine on paper, the iGPU still isn't up to the task of powering the display, which really hampers the experience (laggy OS X animations and scrolling on heavy webpages for example) that would really frustrate me if I owned one. I personally prefer the form factor of the Air too (the taper really makes it a lovely typing experience).
I can get a good 9+ hours running a Windows VM in Fusion, with basic productivity tasks (most recent being Access, some Notepad++). The rMBP doesn't match that, however it's probably more than enough for the majority of users.
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