Pros vs Cons - Navigation/content embedded within javascript

[Rich_Coffman]

My programmer showed me this demo website where all the navigation and content is embedded within javascript: http://sailsjs.org/#!

Google site search returned 51 in results, all pages pretty much unique Title Tags and Meta Descriptions

Bing site search returned 24 results with pretty much identical Title Tags and Meta Descriptions

Matt Cutts said it's fine but to test first: http://www.youtube.com/watch?v=Mibrj2bOFCU

Has anyone seen any reason to avoid this web convention?

My gut is to avoid this approach with the main drawback I see is that websites like this won't do well on search engines other than Google that have less sophisticated algorithms.

thoughts?

[Travis_Bailey]

Your gut instinct is correct. Yes, it's entirely possible to crawl javascript. Is it still difficult to crawl? As far as I know, yes. So why put up that barrier if you don't have to?