I forked out the $10 on Pages, and must be honest - I was a bit dissaponted. First off, it really does have the barest of functionality, so it doesn't have close to the same options available as Word on my pc/laptop.
Secondly, the font options are very limited, and I am not overly convinced that something dramatic would not occur were I to make major changes to a "Word" document on my Ipad in 'Pages', and then copy it back to my pc... Having said this, I haven't tried it yet - so I am speculating...
The single major advantage to having Pages, is simply that it does at least allow me the option, should I need to, to edit Word doc's on my Ipad... There will, and have been, situations already where I have had to make minor changes/editorial amendments to Word docs that were sent to me, and whereas I could have converted them to .pdf, and then commented via annotation in one of my other programmes (Goodreader etc), it was simply quicker to do it in Pages...
In spite of the above, even with my bluetooth kepyboard, whereas I
might create a simple Word document from scratch on my Ipad, or edit basic Word documents on the pad as well, I cannot see my self doing large-scale editing of "heavy" Word docs, such as thesis etc. on my Ipad using Pages... But then again, maybe this is just me...
One major word [ha-ha-] of caution though... not sure which of them it applies to - but have a
very careful read through each of those Office package details in the App-store before downloading... One of them
only accepts Word/Excel/Powerpoint etc. documents "up to" 2008, which presumably means it will not recognise Office 2010 documents... I only noticed that after picking it up in the comments section - it's literally the last line under the specs section, which you would only see if you "read more" and scroll down...
My 2 cents...