Windows and Mac go their separate ways?

This exchange on Dan Gillmor’s blog (via “Scripting News”) about why great tools like Oddpost don’t have Mac versions, got me thinking. It cuts both ways. My primary machine right now runs Windows, which means I can’t use great software like NoteTaker, NetNewsWire, and EtherPEG. The Windows-only tools I like often aren’t really about Windows. They are tied to Microsoft’s Internet Explorer engine or Outlook’s email client, neither of which I want to use. Anyway, with Apple’s resurgence, it seems the two platforms are diverging more rather than less.

All of which makes my decision about what machine to buy next more difficult. I know it’s either a 12 inch Powerbook or an IBM Thinkpad T series.