Since it's not obvious when logging to your Chase account that this exists (it's only in the FAQ, not on the main rotating bonus page), here the link to the FT thread about it:
Also, for those who don't know, it's really 10x the points, which can be redeemed for cashback (in which case it equates to 10% cashback), but can also be used in other ways.

I guess I should now rejoice that Amtrak Guest Rewards (AGR) left Chase (for BofA) and Chase converted my AGR Visa to a Freedom card last month, since that's the only reason I have a Freedom.