Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar], from Objective-C, in the new Swift language?

For example:

let str = "A String"
println(" str value \(str) has address: ?")

Swift 2

This is now part of the standard library: unsafeAddressOf.

/// Return an UnsafePointer to the storage used for `object`.  There's
/// not much you can do with this other than use it to identify the
/// object

Swift 3

For Swift 3, use withUnsafePointer:

var str = "A String"
withUnsafePointer(to: &str) {
    print(" str value \(str) has address: \($0)")
}