We recently started importing Orkut friends for new Google+ signups in India and Brazil. Orkut friends show up as Google+ contacts in the circle editor.
We will be offering an upgrade path for existing users soon. However if you'd like this for your own Google+ account you follow these steps:
1) Use a Brazil or India proxy: go/ganon for the firefox or chrome extension.
2) Visit the following URL:
https://
Enjoy!
#googplus