I met Io programming language a few weeks ago. It is very simplistic, minimalist and has a consistent syntax. It is a fully object oriented language inspired by Smalltalk. A significant difference from Smalltalk is that it is prototype based, so there are no classes.

To name a few advantages and disadvantages:

Advantages:

• Very consistent syntax
• Very minimalistic rules
• Has a lot of useful methods that makes your life easier
• Very polished source code
• Very informative and polished errors
• Chic documentation

Disadvantages:

• I like the writing style: