[brador]

Does this need IOS8 to run?

Is there a way to get that without being a signed up dev with Apple?

[martingordon]

Apple has stated that Swift apps can target iOS 7/8 and Mavericks/Yosemite. You do need access to the dev program in order to get access to the Xcode 6 beta.

[alexbilbie]

It shouldn't need iOS 8 to run because it compiles down to the same native code that Objective-C apps and Rubymotion apps do.

[craigching]

> Is there a way to get that without being a signed up dev with Apple?

You need to be in the iOS developer program to get iOS 8 beta.