Mica

If you're looking for a powerful system for building network-accessible multiuser portable applications, you might want to check out Mica. It's an impressive programming language and object environment that's specifically designed for use by multiple programmers simultaneously.

One of the standout features of Mica is its implementation of a mostly pure object oriented language. This makes it incredibly easy to use and understand, even for those who are new to programming. Additionally, Mica includes a number of other helpful features, such as automatic persistence, reflection, strong encapsulation, multiple dispatch, and run-time security.

But perhaps the most exciting thing about Mica is its focus on extensible "Collaborative Virtual Environments" (CVEs). These environments are designed to allow for seamless collaboration between users and agents, making it easy to build highly-collaborative authoring environments, MUDs/MOOs, and even massively multiplayer online games.

Overall, if you're looking for a language and environment that's easy to use, versatile, and packed with great features, Mica is definitely worth checking out. It's an ideal choice for anyone looking to build complex, network-accessible applications and environments, and its focus on collaboration makes it a powerful tool for teams of developers working on the same project.