Re: Linux Replacements for Your Favorite Windows Apps
Please define "mainstream."
Would your definition of "mainstream" not include the many governmental and educational institutions that are implementing across-the-board Linux installations (in many cases, replacing Windows systems in the process)?
Would your definition of "mainstream" not include the many large PC manufacturers who now offer Linux pre-installation options?
Would your definition of "mainstream" not include the low-end PC market, which includes PCs with hardware that is incapable of running Windows Vista, and for which Linux-based PCs have sold very well for Wal-Mart, Sears, etc.?
Would your definition of "mainstream" not include the nascent ultra-low cost PC (ULCPC) market, which not only is growing, and not only represents perhaps the largest PC market segment, by far, but also is absolutely dominated by Linux? The incredibly popular EeePC? Linux (with a WinXP option now available). The OLPC? Linux.
Need I go on?
Linux adoption may take longer in the US, but the US no longer dominates the PC market.
Europe is becoming more and more anti-Microsoft. Asia and South America are already starting to tilt toward Linux. Microsoft is being forced to offer Windows (and Office) licenses in these markets for pennies on the dollar - which means that, with growth in these markets, Microsoft's business model (which absolutely depends upon OEM installations of - and thus, licenses for - Windows and Office) will crumble.
More anecdotally, Linux is already mainstream for me. My transition took place within the past year, and it has been painless. My wife, who is no computer power user, is perfectly comfortable using my Linux machine to do anything she needs.
Your statement may have been true ten years ago, but it is absolutely, almost verifiably false today.
Dell*buntu Inspiron 1420n, running Kubuntu 8.04