syncing wordpress w/ drupal

Hello Everyone, this is my first post =)

I’ve just started to create a blog in wordpress for work to promote a new brand & services. I’ve chosen wordpress for its great range of themes, widgets, and usability. ANd here’s the potential issue: My company’s vision is to use Drupal (to create a separate website) as the main tool to manage contacts & opt-ins gathered from all marketing tools which should include the blog. If the CMS created with Drupal is to use PHP & MySQL, can I pass the subscriber data from WordPress to Drupal? They both use the same technology so I thought it was ok but I’d check with the community to be sure.
For example, If i have visitors who submit their names and emails to comment on my posts, can I use these data to propagate to the Drupal site’s database with ease? Has anyone done this before? Thanks in advance for any advice,
kevin