The attack on paid software and services continues.

In general, free and open-source software isn't yet robust enough to stop the corporate dollars flowing to Redmond. Nor are shallow-pocketed companies likely to try, since the development effort to match feature for feature is just too much. Heck, most of these companies may be gone in a few years if they don't make the transition to an ad-supported or paid-tier model. Or get bought for their codebase and user list, like Writely. But for now, it's a good time for entrepreneurs, consultants and startups.