There are two reasons why Apple's new file format in Pages 5.0 frustrates me:
1. They've gone back to a format closer to Pages 08 than the one they had most recently in Pages 09. In so doing, they've broken the methods that the various syncing services (google drive, dropbox) had used to read Pages files.
2. This creates a situation that PUSHES users toward using iCloud. If you want to use Pages 5.0 on your Mac and on your iOS device, your only real option right now is to store all those files in iCloud – because if you store Pages 5.0 files in any other cloud then you won't be able to access them on your iOS device.
The doubly frustrating part is that I would be willing to simply SWITCH over to iCloud storage if apple actually made it viable. I have THOUSANDS of Pages documents, and yet the only file structure apple will make available to me is one with only ONE level of folders. That's just insane. Now, if Apple wants to keep iCloud simple, that's fine, but then they ought to put some thought into avoiding BREAKING all the other syncing programs out there. And I just can't help but think that Apple KNEW that the Pages 5.0 file format would break dropbox and google drive syncing. Dropbox is EAGER to make sure the syncing works, and it wouldn't have been that hard for Apple to share the file format with Dropbox ahead of time. But of course they didn't do that. So in the end they leave me with no viable options.
I say this as someonw who HAPPILY abandoned word in 2005 and switched over fully to Pages, even before it was a full-fledged Word procssor. I say it as someone who has NEVER used a Windows PC and has been using an Apple computer since 1985.
I'll cross my fingers that dropbox can figure out a workaround and update their app.