Targeting Javascript is just a small portion of the Opa code, as you can see at the Opa repo.
Indeed, should the language you mention exist, it would be easy for Opa to target it.

My fault. The word transparent comes from the original article, but not from opalang site. As for cloud, it clearly lacks a meaning ;) I take it as distributed+easy to deploy, so Opa will be the cloud language once it can automatically deploy apps on EC2, Rackspace, etc.

You don't use Google? You don't use Twitter? You don't use Facebook? Honestly, the web is evolving towards applications. And the truth behind applications is that they need to run some code on the client side. You may not like it, but with or without this new technology, there will be probably few sites which will work without JS code running on the client in a few years.

You're the debian packager for Wt, so you must know Wt much better than I do. However, both projects are very different and you should probably have a real look at Opa before popping up on every story about Opa (followed by another comment by someone else saying the link was useful, history repeats ;). Opa is high-level language for writing web apps. Wt is a toolkit for writing web components in C++. There is an order of magnitude between the length of application code in Opa and in Wt. Wt handles everything as strings and does not perform any verification on the soundness of the application -- it's a way simpler project. But on the other hand it is useful to add a web touch to existing C++ desktop apps.

And this one: http://opalang.org/sdfdsfafdsfsdofndsf

After all, the site is named flashuser... so quality is not expected here ;)

Opa is only for web applications (or webservices) But indeed, it's a very good language to program them, as a concurrent alternative to Scala + Lift.

Opa is a recently released open source technology that mixes together front-end and back-end code. See http://opalang.org/ Also, there are packages for MacOSX, which is probably your environment ;) If you can try it, I'm really curious about how easy it is for a non-programmer to learn this kind of programming language.

Seems like there is no single best programming language anymore For instance, for web application development, I would strongly suggest the recently released Opa http://opalang.org./ Only the web, but does it better and only one technology to learn to make an app.