If you were needing another reason to switch to Windows 7, here is another. Wordpad on Windows 7 *can* read and modify MS Word 2007/2010 docx files.
I found this out when using my Netbook that does not have Office installed (frankly it’s not capable of running Office). I opened a docx file without thinking and saw a warning that all document features may not be supported. On the screen I notice that the top margin was absent, but when I printed the document it came out looking great. Wordpad does use a ribbon interface and appears to support the basic features one would expect from a word processor.
If you are using a budget computer or are operating on a small budget then Wordpad can work as your wordprocesor. It is the poor man’s word processor!!