Networking & wireless forum: Belkin N+ backwards-compatibility with 802.11.g

I have two questions about the Belkin N+ wireless router, but couldn't fit them both in the subject line.

I read the CNET review (and watched the video) of the Belkin N+ Wireless router. I am interested in the time-of-day controls (to prevent kids from web-surfing during homework hours): "The Parental Control feature ... allows certain computers to access the Internet selectively based on time or content".

Is this feature part of the hardware configuration, that is, not through some external subscription service?

The computers I want to control by time-of-day are Macintosh notebooks using built-in Airport wireless capability; they're at present happily connected to a Belkin 802.11g wireless router, which the N+ would replace.

Will the N+ be backwards-compatible with the built-in Wireless "g" Airport cards in these Macintosh notebooks? I ask because the Belkin specs give this warning:

"This product uses the draft version of the upcoming 802.11n standard. Its compatibility with other and future products is not guaranteed, and it may interfere with current 802.11b and g products."

Thanks