Versions
All Etoys versions are based on object-oriented programming languages. Squeak Etoys runs on more than 20 platforms bit-identically. Versions exist written in three programming languages. The original and most widely used is based on Squeak, a dialect of Smalltalk. The second is also based on Squeak, but uses the optional Tweak programming environment instead of Squeak's default Morphic environment. The third is based on Python and is named PataPata . PataPata has been abandoned by its author.
In 2006 and; 2007, the Squeak Morphic version was adapted for distribution on the OLPC XO-1 educational machine, sometimes known as the $100 laptop. Viewpoints Research Institute participates in the One Laptop per Child association, and Etoys is pre-installed on all XO-1 laptops.
The licensing is free and open source.
As of 2010, Etoys 4 conforms to the requirements of free and open source systems, such as the various Linux distributions.
In 1996, Apple had released Squeak under their "Squeak license", which did not qualify as fully free software, due to the presence of an indemnity clause. The source code was available and modification was permitted.
In May 2006, Apple relicensed the Squeak core under the Apache 2.0 license, thanks to Steve Jobs, Dan Ingalls, and Alan Kay. Viewpoints Research collected written relicensing agreements from several hundred contributors under the MIT license, and all code in Etoys not explicitly covered by a relicensing agreement was removed, rewritten, or reverted to an earlier version, mostly by Yoshiki Ohshima. Squeak Etoys is now completely free and open source.
Read more about this topic: Etoys (programming Language)
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“The assumption must be that those who can see value only in tradition, or versions of it, deny man’s ability to adapt to changing circumstances.”
—Stephen Bayley (b. 1951)