What I'm most concerned about is that mobile iWork destroys your documents (Keynote, Pages, Numbers; all of them) on import. I understand that mobile iWork can't provide all the features of the regular iWork suite, but then PLEASE leave my documents intact! QuickOffice and Documents to Go can do that, even on a Blackberry, so we all know it's feasible. Of course it requires some extra magic, but still...
As an INTERIM solution, maybe regular iWork could provide a "compatibility mode" where you're only allowed to produce documents that are FULLY compatible with mobile iWork.
Furthermore, because the iPad would make such a great presenter device, Keynote should at least be able to SHOW all regular Keynote presentations. Presenter View is one thing, and I really hope mobile iWork will include one in version 2.0, but that doesn't take you anywhere if your presentations don't look the way they were created. If this is still expected too much, then PLEASE let (regular) Keynote have an export option to produce a stand-alone version of its presentations for the iPad. I mean, PowerPoint has had such option for stand-alone presentation (to run on other PCs only, admittedly) as long as I can remember.
What surprises me about the import/export options is that usually Apple holds back features until they've found a good user interface for it (see copy&paste, see multitasking). The current import/export solutions on the opposite look like being slapped on with no thought and time for a good implementation. I desparately hope Apple currently puts a lot of manpower into the implementation of some sort of wireless background sync which not only works for iWork documents but also for everything else that currently needs ancient iTunes and USB for sync. Both on the iPad (and of course all other iDevices) and on my computer I should be able to mark docs, music, videos etc. for syncing, and next time the computer and the iDevice are in the same WLAN it should start syncing. WITHOUT a special trigger such as starting a sync app, ie similar to Mail. The last part is the one where all third-party sync tools currently fail (due to restrictions on background apps imposed by Apple).
A similar kind of syncing is also required for any kind of (newspaper, magazine) subscriptions. Please don't expect me to fire up my Mac, wake my iPad, plug in the iPad, start iTunes, wait until it recognizes the iPad, switch to iPad view, select apps/subscriptions or whatever and press sync in the morning before I had my coffee just to download my daily newspaper. If it's as cumbersome as this, I'd rather drive downtown and get me a paper version. Subscribed content (1) must not require a computer do download (2) must not require any user intervention to download and (3) must occur in the background.
Regarding the review: I agree it's a little sub-par compared to other Ars reviews. Only the part on the import and export options can be considered a review rather than a description.