Will Thimbleby:
A reversible interpreter provides some really interesting opportunities for exploration and learning programming. Reversibility makes it possible to scrub through the execution of algorithms, which you can see used to great effect in the Algorithm Wiki and in the depth-first traversal example below. The code that is highlighted on the left-hand side is the actual code that is running. Being able to scrub through the algorithm is not only fun, it transforms the experience of exploring the algorithm.
Algorithm Programming
Matt Neuburg:
I have not yet explained how on earth Cloud Mate on iOS is able to show you a preview of the contents of an iCloud-based file, as well as handing that file off to various other apps and services. The answer is that Cloud Mate’s information about each cloud-based document includes not only its name, size, and modification date, but also the URL of its storage location at www.icloud.com. Thus, when you tap on the name of a document, Cloud Mate does effectively the same thing that Dropbox does when you tap on the name of a document in the Dropbox app — it downloads the document from iCloud!
The iOS app is possible because the companion Mac app is not sandboxed.
Cloud Mate iCloud iOS iOS App Mac Mac App Sandboxing
