Quoting www.slovio.com:

Slavic, international, simplified.
Slovio, is the international simplified Slavic language, as simple as Esperanto but understood by some 400 million people around the world. This makes Slovio one of the most widely understood languages around the world. This international language is gaining, daily, new ground: because it is as simple as the simplest constructed language and at the same time can be put to an immediate daily use for communication with some 400 million speakers. Unlike traditional Slavic langauges, it uses only the most basic latin alphabet,Slovio BOOKS FOR CHILDREN. without any accents or special characters, and it can be typed on any keyboard - including the U.S. keyboard. You will be amazed how many people will understand you, how many people will talk to you! Slovio will open up a whole new world for you, for your business, for your website, for your products, for profits, for education, for friendship and for pleasure. Slovio is the planned language of choice for modern people. Simple logical grammar, simple phonetic spelling, and full compatibility with all European languages - only simpler. Current Slovio dictionary contains nearly 50 thousand words, names and expressions. That is more words than some "natural" languages.