Well, this didn't take long - the hackers over at NotionInkHacks.com played around with Notion Ink's dual-core Adam Android tablet that finally started shipping last week and already managed to root the device.
The next logical step and the primary motivation for rooting Adam was, of course, getting the absent Android Market onto the tablet. As we all know, those with almighty root privileges are not easily stopped, so I'm happy to report that full Android Market is now also available on the Adam.
Check out these screenshots I've taken from videos by FreezerBite1 and Inspiron41 of their rooted Adams - the first one showing the Android Market, the second one playing Dungeon Defenders installed off said Market, and the third one of Launcher Pro that replaced the Eden UI (good riddance, in my opinion - I've always thought of it as too crude and poorly designed):
And here are the aforementioned videos:
Rooting + Market Instructions
Here are the latest available instructions, as per this NotionInkHacks post.