[AccessD] What's the bug/problem with creating with Access 2010 and deploying to earlier users?

Isn't there a bug where databases created in A2010 and are deployed to
users with A2003-2007?

The reason I ask is that I am getting a new computer at work that has
Office 2010 installed.

I mainly work with ADPs, and they are we created in Access 2000 (or in A2k
Format).

Is there even an issue?

Thanks,
David