Google already uses the new Pepper Plugin API[1] in the current versions of Chrome. They've also switched projects like Native Client to use this new API instead of NPAPI. PPAPI definitely seems better based on my experience of writing a few Native Client modules.
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NPAPI is difficult. I couldn't find a working sample project(though I only spent a couple hours) last year when I wanted to try it out.
It sounds like Google is working on a new plugin architecture in JS + HTML that will support the deep interactivity of NPAPI, so we'll see...
Google already uses the new Pepper Plugin API[1] in the current versions of Chrome. They've also switched projects like Native Client to use this new API instead of NPAPI. PPAPI definitely seems better based on my experience of writing a few Native Client modules.
[1] - http://code.google.com/p/ppapi/
Wow, good tip, thanks!