Sorry, while I definitely see the usefulness of the package it is far from being ready for proposal.
* Very few PEAR developers read Russian, therefore it is impolite to link to Yandex' docs on their XML format and call the link "Package documentation"
* It is impossible to run the enclosed example without registering on Yandex which is quite hard unless one reads Russian
* The code does not follow PEAR coding standards (this is trivial to fix with some code beautifier)
* The code contains almost no PHPDoc comments. This is less trivial to fix and is usually a major problem for accepting packages, especially with non-existant end-user docs and non-working examples.