Is the OS identical to that on MacBooks?
Yes.
Is the screen OK outdoors in bright light? The glossy screen on my MacBook Pro is a real pain at times.
How rugged is the ModBook? I don't expect it to be weatherproof, but does it mind rough handling?
The Modbook display has roughly the same brightness as the MacBook Pro's with a non-glossy screen. It has similar durability as well.
Does anyone make a case that will improve its ruggedness?
Can it be used inside a clear plastic bag, eg Ziploc, to improve weatherproof-ness?
Any case that fits a MacBook will fit a Modbook, and, yes, Ziplocs work.
With a keyboard and a mouse and some sort of stand to prop it up, is the ModBook as good as a laptop or a desktop?
It is as good as the MacBook that it is made from.
I understand that Snow Leopard already has an on-screen keyboard. How is this with the ModBook? Is it pen-only, or can I use my fingers? Can it be used when the screen is rotated into portrait mode?
Axiotron's virtual keyboard (actually built by AssitiveWare) is much better than Apple's.
The Modbook is pen only; though the the unlikely-to-ever-exist Modbook Pro is rumored to have some touch capability. The display maybe rotated if the Modbook is built from a MacBook that uses NVIDIA graphics, namely, the 2.0 GHz Macbook (MB881LL/A) of January 2009 and 2.13 GHz Macbook (MC240LL/A) of May 2009.
Is it possible to keep the ModBook and another Mac perfectly in sync using a USB hard drive.
The ‘perfectly’ part may not be practical, as the Modbook is a tablet and the MacBook Pro is not. Some preferences will have to be different.
Does the ModBook have the same Magsafe power connector as the MacBook Pro?
Maybe. The Modbook uses the 60 Watt MacBook power supply, which the 13" MacBook Pros also use. The larger MacBook Pros use a larger power supply.
Will I be happy with a ModBook or should I wait for the ModBook Pro?
That is an interesting question. In Samuel Beckett's play “Waiting for Godot”, did Godot ever arrive?
In the latter case, I really hope that I can give up my 13" MacBook Pro for conversion.
Probably not. The nonsense used to describe the Modbook Pro up to this point has all involved the 15" MacBook Pro
EricN
Modbookish