Just a few days ago, IBM released a sandbox for Apple’s SWIFT language, and it works in the browser. I think that’s great news, now there is a convenient and easy way for everyone to become acquainted with SWIFT.
The news is also noteworthy because the site is announced only a few days after Apple put their money where their mouth is and made SWIFT available in the public domain. There must have been some collaboration between the two companies. IBM and Apple are working ever closer together. Remarkable, knowing that the two have been rivals for years.
I’d suggest you give it a try on http://swiftlang.ng.bluemix.net. In the upper left corner there are some sample projects to get you started. There is some more getting started on the IBM blog.