Sure, we'd all want an ideal setup but ideal isn't possible in an interview situation - both sides need to compromise a bit for practical reasons. And really, while we say "laptop" if someone wanted to lug in their desktop with two monitors and keyboard we wouldn't stop them. In fact, it'd probably earn them points for being extra nerdy ;)

Would you rather a laptop w/ standard editors and IDEs or would you prefer a google doc, collabedit or a whiteboard like many places do?