The big difference here was that the Mac had been around for ten years, had a big user base (even if small relative to windows) and sustainable compelling advan

The big difference here was that the Mac had been around for ten years, had a big user base (even if small relative to windows) and sustainable compelling advantages over its competitors (best versions of most graphics apps, only versions of some, many unique media apps (e.g avid, protools), real multiple monitor support, system level color management). If WebOS had ten years of history and a bunch of industry leading apps on it the analogy might be stronger.