[muyuu]

Google+ first didn't let me to use a different name for my account, and then showed me a nice dialog, in words to this effect: "do you want to link Picasa to your account? (yes) (cancel Google+ account creation)"

So long, Google+

[calloc]

Picasa is what is used for Google+'s photo backend. You are not required to share anything from Picasa on Google+ and vice-versa.

[muyuu]

Google has it though. Well, this made me go to Picasa and delete everything except for random funny internet pics. Same as youtube made me go and delete all my personal flicks when they forced me to link it to my gmail account. After creating another gmail account to link it to.