Why Facebook before Google+?

Not that better technology will alone push users over to Google+, of course.

Social Networking Showdown- 8 Facebook Features Google+ Doesn’t Have (Yet) – Slideshow from PCMa

Community and approach (your actual friends instead of faceless people) was what made Facebook popular.

Obviously Google+ needs to support apps too.

The biggest hurdle for Google+ is that no one’s on Google+. Catch 22.

Google needs to pre-invite Gmail users and pre-link to Blogger blogs etc to increase the likelihood of making this a hit.