How to combine Doctrine 2.0 and CodeIgniter 2.0 ?

[eluser]Mareshal[/eluser]
Since CI 2.0 has a lot of bug fixes and Doctrine is almost close to beta1 - 22 March 2010 , I would like to know how to integrate CI 2 with Doctrine 2.

Many will say that if Doctrine2 is only beta1 why do I use it? First of all, Doctrine2 is almost 3 times faster than Doctrine 1.

I tried some tutorials, but all of them are using CI 1.7.2 and Doctrine 1.2 . Doctrine 2 is a bit different. Anyone tried it?

thanks