It looks like Yahoo!, Google and IBM are going to be offering free software comparable to Office, online, where you may access it from anywhere via the Internet, whether you use a PC or MAC.
Yahoo Acquires Zimbra Open Source Email & Collaborative Software for $350 Million
It’s time for Yahoo! to step up and win some recognition back in the mail, asp and planning segment, and the acquisition of Zimbra, a university and 2.0 darling is a successful step.Official Google Docs & Spreadsheets Blog
Just like Google documents and spreadsheets, presentations are stored securely online, so you can access them from anywhere using only a web browser.Free IBM Software Is Bid to Challenge Microsoft Office - WSJ.com
Today, IBM plans to post on the Internet a package of its own software with applications that square off against components of Microsoft's ubiquitous Office suite -- a word processor to rival Word, a spreadsheet to go up against Excel and business-presentation software as an alternative to PowerPoint.