We present recent results on implementing logic using physically coupled nanomagnet arrays. The binary state of a bit is represented by the magnetization state of a single domain nanomagnet element, and logic is accomplished through direct physical interactions between them. We refer to this approach as nanomagnet logic (NML). We have demonstrated that NML satisfies the requirements for digital logic, and offers performance advantages, primarily low power and non-volatility, as a potential post-CMOS technology.