Larry, the recipients do NOT need to have an iCloud account. They do not even need to have a Mac. Anyone on a Mac or PC can access a link you send them, and download the document, as long as they have a modern browser.
@SGIII: I agree this works...but surprisingly, many people who use a Mac don't use iCloud at all. Good example: the person I needed to send this file to yesterday is a Mac user and is a retired commercial pilot, so he's not stupid. I sent him the link and of course it opened up in Numbers Beta in iCloud and my phone rings with, "I want this spreadsheet to be on my desktop...not online. This thing is asking me if I want to get started with Numbers Online...and I don't."
Given, he's a very casual user of Numbers, if at all, and I'm sure if he'd have played with it a few minutes he would have figured out he could click on "Tools - Download a Copy" without me telling him. But it still should be easier...especially since it's Apple.
Oh, well...I agree we're probably stuck with it and I'm sure it helps the iOS crowd. I very rarely have ocassion to use iWorks on my iPhone, but I do on my iPad, but then again I'm retired. I'm sure the business crowd sees iWorks 3 as a huge improvement. I'm glad, though, that Apple said they'd returne "most" of the previous features...even though they caveated with "over time". Thanks for your comments here.