Yes, this topic is veering, but let me offer my advice for those looking.
First, Pages for iOS (iPhone, iPad) is different than Pages for OS (Macbook, iMac, etc.) -- two different programs and need to be purchased separately.
If you wish to synch your documents between your iPad or iPhone and your Macbook, iMac, etc., iCloud does not do this. Perhaps it will with Mountain Lion.
So, unless you want to synch between iPad and iPhone, there's little point using iCloud for this. It does create a back-up, though. But with this problem of synching, I figure, "why am I trying to fix an issue for some feature that's useless?"
Thus, I've stopped my iPad from synching my Pages docs with iCloud. The iPad wants to 'update' a document to iCloud as soon as you make any changes. I'm much more comfortable doing this the old way: I email the document as an attachment to myself from my Macbook, open the email on my iPad, and open the attachment in Pages on the iPad and it's saved there. If I make a lot of changes to the doc on my iPad, I'll just email it again from my iPad, open it on my Macbook and save it with same file name to overwrite the old one. I suppose that's a bit cumbersome, but my documents are important so taking a few steps doesn't bother me to ensure they don't just vapourize or changes lost.
ps. Pages and the whole iWork suite (the program, not the app) is bloody fantastic. Much, much better than MS Office. The app for iPad is pretty good, but is a rather 'lite' wordprocessor. Typing on the iPad isn't that great, either. Note WitchDoc's comment above: 'm' instead of a space... I do this all the time on the iPad!