There’s been a fair number of questions about how to use ARC (Automatic Reference Counting) posted all over sites like Stack Overflow.
While no answers can be posted publicly about using the tools within the beta iOS 5 sdk yet – there is a lot of public info around (mainly confusing and highly technical) about ARC.
I’ve come across this excellent and highly readable write up describing exactly what ARC is, how it works, the benefits, the limitations and more.
The write-up is from Mike Ash on The Complete Friday Q&A and you can find it here.
If there’s anything you want to know about ARC chances are it’s in this write-up (or the comments).