According to the official blog, Yoshitani's comedy manga "Boku, Ota-ryman." was announced to get an OVA adaptation. It will be released in January 2010.
and Kugimiya Rie
will play the main characters.
Example of Yoshitani's four-panel manga
Boku, Ota-ryman. (otaku + salaryman) is a autobiographical manga of the author Yoshitani, who is also working as a system engineer. It's about a slice of life of an office worker, who is a little bit otaku. The total sales of the four volumes are more than one million copies.
Source: Yoshitani's blog