I have to assume that they know what they're doing -- it's easy to second-guess from the sidelines -- but it does seem a bit strange not to plow a large part of that cash back into the business. It's not like it's a utility company, this is a growth industry.
Apple, of course, has its own approach of doing things. A company is supposed to distribute dividends. But Apple hasn't distributed them for years (under Steve Jobs) and had almost US$ 100 billion in cash. And analysts criticized Apple for that, but it was working because the company accumulated cash and its shares were also going up, despite no dividends distributed. Shortly after Jobs died, however, Apple announced a program to distribute dividends. Something must be going on. To pay the investment of shareholders by means of distributing dividends may be a good thing. But Apple customers would benefit from having this money put back in business.
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This is an oversimplification from a scenario standpoint and it fails to mention that Pages can export to a Word format.
It is not simple at all. The more complex elements you use - footnotes, cross-references, track changes - the more difficult it is to maintain compatibility between these pieces of software.
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I prefer Excel over Numbers but I also prefer Keynote over Powerpoint. Word and Pages is a tossup. However, I think one reason you gave to prefer Office isn't a very good one. You're basically saying that since Microsoft makes absolutely no effort to support opening Keynote or Pages files, then it is better. Meanwhile Apple is making efforts to support opening even its biggest competitor's files and somehow this is a negative on iWork? I disagree.
Well, from a practical standpoint, it makes perfect sense. iWork is a newcomer in this industry. It has to support the filetypes supported by the office suites that have been around for over two decades. Everybody uses Microsoft Office; therefore, I should be able to open and exchange files which are supported by Microsoft Office. But I am not supposed to open and exchange files writen in iWork format. The fact is that Microsoft Office is the standard, and everybody must dance with it. Including iWork.